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31056982 = 21119191389
BaseRepresentation
bin111011001111…
…0010001010110
32011102212011121
41312132101112
530422310412
63025354154
7524660065
oct166362126
964385147
1031056982
1116592630
12a49895a
136585118
1441a61dc
152ad7107
hex1d9e456

31056982 has 32 divisors (see below), whose sum is σ = 53913600. Its totient is φ = 13269600.

The previous prime is 31056959. The next prime is 31056997. The reversal of 31056982 is 28965013.

It is a super-2 number, since 2×310569822 = 1929072261896648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79644 + ... + 80032.

It is an arithmetic number, because the mean of its divisors is an integer number (1684800).

Almost surely, 231056982 is an apocalyptic number.

31056982 is a deficient number, since it is larger than the sum of its proper divisors (22856618).

31056982 is a wasteful number, since it uses less digits than its factorization.

31056982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 31056982 is about 5572.8791481603. The cubic root of 31056982 is about 314.3304228605.

The spelling of 31056982 in words is "thirty-one million, fifty-six thousand, nine hundred eighty-two".

Divisors: 1 2 11 19 22 38 191 209 382 389 418 778 2101 3629 4202 4279 7258 7391 8558 14782 39919 74299 79838 81301 148598 162602 817289 1411681 1634578 2823362 15528491 31056982