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31885314 = 2323231053
BaseRepresentation
bin111100110100…
…0100000000010
32012222221102120
41321220200002
531130312224
63055225110
7535010046
oct171504002
965887376
1031885314
1116aa89aa
12a818196
1367b5166
144340026
152bec779
hex1e68802

31885314 has 16 divisors (see below), whose sum is σ = 66543552. Its totient is φ = 10166288.

The previous prime is 31885289. The next prime is 31885333. The reversal of 31885314 is 41358813.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115389 + ... + 115664.

It is an arithmetic number, because the mean of its divisors is an integer number (4158972).

Almost surely, 231885314 is an apocalyptic number.

31885314 is an abundant number, since it is smaller than the sum of its proper divisors (34658238).

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

31885314 is a wasteful number, since it uses less digits than its factorization.

31885314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231081.

The product of its digits is 11520, while the sum is 33.

The square root of 31885314 is about 5646.7082446324. The cubic root of 31885314 is about 317.1004799778.

The spelling of 31885314 in words is "thirty-one million, eight hundred eighty-five thousand, three hundred fourteen".

Divisors: 1 2 3 6 23 46 69 138 231053 462106 693159 1386318 5314219 10628438 15942657 31885314