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31012260683 = 5912726315737
BaseRepresentation
bin11100111000011110…
…011000101101001011
32222001022001001222112
4130320132120231023
51002003114320213
622125152212535
72145340603115
oct347036305513
988038031875
1031012260683
1112174681508
126015b3a14b
132c03005b11
141702a683b5
15c1792cea8
hex738798b4b

31012260683 has 16 divisors (see below), whose sum is σ = 31909109760. Its totient is φ = 30129656256.

The previous prime is 31012260679. The next prime is 31012260701. The reversal of 31012260683 is 38606221013.

It is a cyclic number.

It is not a de Polignac number, because 31012260683 - 22 = 31012260679 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31012269683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1962791 + ... + 1978527.

It is an arithmetic number, because the mean of its divisors is an integer number (1994319360).

Almost surely, 231012260683 is an apocalyptic number.

31012260683 is a deficient number, since it is larger than the sum of its proper divisors (896849077).

31012260683 is a wasteful number, since it uses less digits than its factorization.

31012260683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16186.

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 31012260683 its reverse (38606221013), we get a palindrome (69618481696).

The spelling of 31012260683 in words is "thirty-one billion, twelve million, two hundred sixty thousand, six hundred eighty-three".

Divisors: 1 59 127 263 7493 15517 15737 33401 928483 1970659 1998599 4138831 117917341 244191029 525631537 31012260683