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31064264 = 23711211239
BaseRepresentation
bin111011010000…
…0000011001000
32011110020011022
41312200003020
530423024024
63025452012
7525020240
oct166400310
964406138
1031064264
1116598050
12a4a1008
13658852a
1441a8b20
152ad935e
hex1da00c8

31064264 has 64 divisors (see below), whose sum is σ = 73267200. Its totient is φ = 11995200.

The previous prime is 31064261. The next prime is 31064273. The reversal of 31064264 is 46246013.

It is not an unprimeable number, because it can be changed into a prime (31064261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129857 + ... + 130095.

It is an arithmetic number, because the mean of its divisors is an integer number (1144800).

Almost surely, 231064264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31064264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36633600).

31064264 is an abundant number, since it is smaller than the sum of its proper divisors (42202936).

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

31064264 is a wasteful number, since it uses less digits than its factorization.

31064264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 31064264 is about 5573.5324525834. The cubic root of 31064264 is about 314.3549881929.

The spelling of 31064264 in words is "thirty-one million, sixty-four thousand, two hundred sixty-four".

Divisors: 1 2 4 7 8 11 14 22 28 44 56 77 88 154 211 239 308 422 478 616 844 956 1477 1673 1688 1912 2321 2629 2954 3346 4642 5258 5908 6692 9284 10516 11816 13384 16247 18403 18568 21032 32494 36806 50429 64988 73612 100858 129976 147224 201716 353003 403432 554719 706006 1109438 1412012 2218876 2824024 3883033 4437752 7766066 15532132 31064264