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31679156104 = 2341791222567
BaseRepresentation
bin11101100000001110…
…011000111110001000
310000202202220212111221
4131200032120332020
51004334330443404
622315254131424
72201016245461
oct354016307610
9100682825457
1031679156104
111248706a952
126181350b74
132cab2240ab
141767465d68
15c56261954
hex760398f88

31679156104 has 32 divisors (see below), whose sum is σ = 61617427200. Its totient is φ = 15257623680.

The previous prime is 31679156101. The next prime is 31679156137. The reversal of 31679156104 is 40165197613.

It is not an unprimeable number, because it can be changed into a prime (31679156101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585372 + ... + 637195.

It is an arithmetic number, because the mean of its divisors is an integer number (1925544600).

Almost surely, 231679156104 is an apocalyptic number.

It is an amenable number.

31679156104 is a deficient number, since it is larger than the sum of its proper divisors (29938271096).

31679156104 is a wasteful number, since it uses less digits than its factorization.

31679156104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222693 (or 1222689 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 31679156104 in words is "thirty-one billion, six hundred seventy-nine million, one hundred fifty-six thousand, one hundred four".

Divisors: 1 2 4 8 41 79 82 158 164 316 328 632 3239 6478 12956 25912 1222567 2445134 4890268 9780536 50125247 96582793 100250494 193165586 200500988 386331172 401001976 772662344 3959894513 7919789026 15839578052 31679156104