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31132773112 = 237737615649
BaseRepresentation
bin11100111111101010…
…000110101011111000
32222100200210201221211
4130333222012223320
51002224442214422
622145135212504
72151333130240
oct347752065370
988320721854
1031132773112
1112226703261
12604a377134
132c21c7c04c
141714a78b20
15c232d5577
hex73fa86af8

31132773112 has 32 divisors (see below), whose sum is σ = 67626972000. Its totient is φ = 13159839744.

The previous prime is 31132773101. The next prime is 31132773131. The reversal of 31132773112 is 21137723113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3803737 + ... + 3811912.

It is an arithmetic number, because the mean of its divisors is an integer number (2113342875).

Almost surely, 231132773112 is an apocalyptic number.

It is an amenable number.

31132773112 is an abundant number, since it is smaller than the sum of its proper divisors (36494198888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31132773112 is a wasteful number, since it uses less digits than its factorization.

31132773112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615735 (or 7615731 counting only the distinct ones).

The product of its digits is 5292, while the sum is 31.

The spelling of 31132773112 in words is "thirty-one billion, one hundred thirty-two million, seven hundred seventy-three thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 73 146 292 511 584 1022 2044 4088 7615649 15231298 30462596 53309543 60925192 106619086 213238172 426476344 555942377 1111884754 2223769508 3891596639 4447539016 7783193278 15566386556 31132773112