Numbers 1,300,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

1,000,000 1,100,0001,200,000 – 1,300,0001,400,000

1,500,0001,600,0001,700,0001,800,0001,900,000

All Numbers  &  [100K] &  [1M]  - [2M]  - [3M] - [4M]  - [5M]  - [6M]  - [7M]  - [8M]  -  [9M]  &  [10M

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1,300,000

[EECS] 1.3M(W) is one of standard numerical values for resistors (of tolerance class 5%).

1,307,691

[Math.]  076,923×17 = 1,307,691 and 1+307,691 = 307,692, a digit-rotation of 076,923.

1,328,470

[Math.]  A pair of amicable numbers (1328470, 1483850).

1,331,000

[Math.]  Squares and cubes of 2 numbers using the same digits: 1012 = 10201 and 1102 = 12100 & 1013 = 1,030,301 and 1103 = 1,331,000.

1,333,334

[Math.]  1,333,334,666,667 = 1,333,3342–666,6672 = (1333334+666667)×666667.

1,334,667

[Math.]  1,334,667 = 13342–6672 = (1334+667)×667.

1,334,961

[Math.]  Subfactorial of 10 is !10 = 1,334,961.

1,336,336

[Math.]  344 = (13+3+6+3+3+6)4 = (01+33–6+3–3+6)4 = 1,336,336.

1,340,235

[Math.]  A pair of amicable numbers (1280565, 1340235).

1,345,679

[Math.]  Number 01,346,689 misses 2 digits 2 and 8 in 10 digits 0-9:

01,345,679×2 = 02,691,358 misses 2 digits 4 and 7 (modulo 9)

01,345,679×5 = 06,728,395 misses 2 digits 1 and 4 (modulo 9)

1,345,689

[Math.]  Number 01,346,689 misses 2 digits 2 and 7 in 10 digits 0-9:

01,345,689×2 = 02,691,378 misses 2 digits 4 and 5 (modulo 9).

1,345,789

[Math.]  Number 01,346,789 misses 2 digits 2 and 6 in 10 digits 0-9:

01,345,789×2 = 02,691,578 misses 2 digits 4 and 3 (modulo 9)

01,345,789×5 = 06,728,945 misses 2 digits 1 and 3 (modulo 9).

1,346,269

[Math.]  The 31st Fibonacci number.  The first Fibonacci number greater than 1 million.

[Math.]  A Smith number: 1,346,269 = 557×2417.  The smallest Fibonacci number that is also a Smith number.

1,346,789

[Math.]  Number 01,346,789 misses 2 digits 2 and 5 in 10 digits 0-9:

01,346,789×2 = 02,693,578 misses 2 digits 4 and 1 (modulo 9).

1,356,789

[Math.]  Number 01,356,789 misses 2 digits 2 and 4 in 10 digits 0-9:

01,356,789×5 = 06,783,945 misses 2 digits 1 and 2 (modulo 9).

1,358,595

[Math.]  A pair of amicable numbers (1358595, 1486845).

1,367,631

[Math.]  A cube number: 1113 = 1367631.

1,372,105

[Math.]  The 9th square number that is also a triangular number: 1,372,1052 = 1+2+…+1,940,449. Each root number in the series is 6 times the previous root number minus the earlier root number: 1, 62, 352, 2042, 11892

1,382,976

[Math.]  Sum of the first 48 cube numbers:

13+23+…+473+483 = 1,382,976 = (1+2+…+47+48)2 = 11762.

1,384,614

[Math.]  076,923×18 = 1,384,614 and 1+384,614 = 384,615, a digit-rotation of 153,846 = 076,923×2.

1,392,368

[Math.]  A pair of amicable numbers (1392368, 1464592).

1,398,269

[Math.]  A prime number. A Mersenne exponent: 21398269–1 is the 35th Mersenne prime number.