Numbers 370,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

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370,261 & 370,373

[Math.]  The 111 consecutive numbers between the prime numbers 370,261 and 370,373 are all composite.

 

371,718

[Math.]  152,344,237,969 = (152,344+237,969)2 = 390,3132 and 371,718,237,969 = (371,718+237,969)2 = 609,6872 and 390313+609687 = 1,000,000.

 

372,970 & 372,973

[Math.]  One of four numbers that is 1 more or less than the sum of factorials of their digits: 372,970 = (3!+7!+2!+9!+7!+0!)+1. Others: 1466, 81368 and 372,973. 

 

373,248

[Math.]  373,248 = (37+3+24+8)3 = 723.

 

373,379

[Math.]  A right-truncatable prime number: self, 37337, 3733, 373, 37 and 3 are prime numbers.

 

373,393

[Math.]  A right-truncatable prime number: self, 37339, 3733, 373, 37 and 3 are prime numbers.

 

374,544

[Math.]  Square and cube of number 612 use different digits: 6122 = 374,544 and 6123 = 229,220,928.

 

376,736  

[Math.]  The 2nd known amicable/sociable number chain: 14316 → 19116 → 31704 → 47616 → 83328 → 177792 → 295488 → 629072 → 589786 → 294896 → 358336 → 418904 → 366556 → 274924 → 275444 → 243760 → 376736 → 381028 → 285778 → 152990 → 122410 → 97946 → 48976 → 45946 → 22976 → 22744 → 19916 → 17716 → 14316. (of 28 links, currently the longest, found by Poulet, 1918).