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31086068 = 221337107151
BaseRepresentation
bin111011010010…
…1010111110100
32011111100001212
41312211113310
530424223233
63030140552
7525140636
oct166452764
964440055
1031086068
1116602472
12a4b1758
136595430
1441b2a56
152ae0a48
hex1da55f4

31086068 has 48 divisors (see below), whose sum is σ = 61133184. Its totient is φ = 13737600.

The previous prime is 31086049. The next prime is 31086079. The reversal of 31086068 is 86068013.

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, 205793 + ... + 205943.

It is an arithmetic number, because the mean of its divisors is an integer number (1273608).

Almost surely, 231086068 is an apocalyptic number.

It is an amenable number.

31086068 is a deficient number, since it is larger than the sum of its proper divisors (30047116).

31086068 is a wasteful number, since it uses less digits than its factorization.

31086068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 31086068 is about 5575.4881400645. The cubic root of 31086068 is about 314.4285195572.

The spelling of 31086068 in words is "thirty-one million, eighty-six thousand, sixty-eight".

Divisors: 1 2 4 13 26 37 52 74 107 148 151 214 302 428 481 604 962 1391 1924 1963 2782 3926 3959 5564 5587 7852 7918 11174 15836 16157 22348 32314 51467 64628 72631 102934 145262 205868 210041 290524 420082 597809 840164 1195618 2391236 7771517 15543034 31086068