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31070374946 = 21313750917137
BaseRepresentation
bin11100111011111100…
…000100110000100010
32222012100101120202122
4130323330010300202
51002113003444241
622135025544242
72146644554342
oct347374046042
988170346678
1031070374946
11121a4464626
1260314a5082
132c12072660
14170a674d22
15c1caac04b
hex73bf04c22

31070374946 has 32 divisors (see below), whose sum is σ = 50659242480. Its totient is φ = 14206703616.

The previous prime is 31070374919. The next prime is 31070374963. The reversal of 31070374946 is 64947307013.

It can be written as a sum of positive squares in 8 ways, for example, as 5838640921 + 25231734025 = 76411^2 + 158845^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31070374897 and 31070374906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1804490 + ... + 1821626.

Almost surely, 231070374946 is an apocalyptic number.

31070374946 is a deficient number, since it is larger than the sum of its proper divisors (19588867534).

31070374946 is a wasteful number, since it uses less digits than its factorization.

31070374946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17798.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 31070374946 in words is "thirty-one billion, seventy million, three hundred seventy-four thousand, nine hundred forty-six".

Divisors: 1 2 13 26 137 274 509 1018 1781 3562 6617 13234 17137 34274 69733 139466 222781 445562 906529 1813058 2347769 4695538 8722733 17445466 30520997 61041994 113395529 226791058 1195014421 2390028842 15535187473 31070374946