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102925028731 = 754165341621
BaseRepresentation
bin101111111011011001…
…1110100110101111011
3100211200000121012100011
41133312303310311323
53141242301404411
6115141052322351
710302402211030
oct1376663646573
9324600535304
10102925028731
113a71754a518
1217b454733b7
139923804785
144da570d387
152a25e1ec21
hex17f6cf4d7b

102925028731 has 16 divisors (see below), whose sum is σ = 118029336768. Its totient is φ = 87921417600.

The previous prime is 102925028729. The next prime is 102925028741. The reversal of 102925028731 is 137820529201.

It is a cyclic number.

It is not a de Polignac number, because 102925028731 - 21 = 102925028729 is a prime.

It is a super-2 number, since 2×1029250287312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102925028741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2452101 + ... + 2493721.

It is an arithmetic number, because the mean of its divisors is an integer number (7376833548).

Almost surely, 2102925028731 is an apocalyptic number.

102925028731 is a deficient number, since it is larger than the sum of its proper divisors (15104308037).

102925028731 is an equidigital number, since it uses as much as digits as its factorization.

102925028731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42822.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 102925028731 in words is "one hundred two billion, nine hundred twenty-five million, twenty-eight thousand, seven hundred thirty-one".

Divisors: 1 7 541 653 3787 4571 41621 291347 353273 2472911 22516961 27178513 157618727 190249591 14703575533 102925028731