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31112163051 = 3349268711059
BaseRepresentation
bin11100111110011011…
…011110111011101011
32222022021000122021020
4130332123132323223
51002204203204201
622143121343523
72150663010504
oct347633367353
988267018236
1031112163051
1112216006652
126043497ba3
132c1a914048
141712031bab
15c215b3a36
hex73e6deeeb

31112163051 has 16 divisors (see below), whose sum is σ = 41620992000. Its totient is φ = 20672444448.

The previous prime is 31112163031. The next prime is 31112163077. The reversal of 31112163051 is 15036121113.

It is not a de Polignac number, because 31112163051 - 230 = 30038421227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31112163031) 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, 2807760 + ... + 2818818.

It is an arithmetic number, because the mean of its divisors is an integer number (2601312000).

Almost surely, 231112163051 is an apocalyptic number.

31112163051 is a deficient number, since it is larger than the sum of its proper divisors (10508828949).

31112163051 is a wasteful number, since it uses less digits than its factorization.

31112163051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14098.

The product of its (nonzero) digits is 540, while the sum is 24.

Adding to 31112163051 its reverse (15036121113), we get a palindrome (46148284164).

The spelling of 31112163051 in words is "thirty-one billion, one hundred twelve million, one hundred sixty-three thousand, fifty-one".

Divisors: 1 3 349 1047 2687 8061 11059 33177 937763 2813289 3859591 11578773 29715533 89146599 10370721017 31112163051