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31246012 = 2271115929
BaseRepresentation
bin111011100110…
…0011010111100
32011210110110201
41313030122330
530444333022
63033413244
7526405150
oct167143274
964713421
1031246012
1116701656
12a56a224
136620185
144215060
152b23127
hex1dcc6bc

31246012 has 12 divisors (see below), whose sum is σ = 62492080. Its totient is φ = 13391136.

The previous prime is 31246009. The next prime is 31246037. The reversal of 31246012 is 21064213.

31246012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557937 + ... + 557992.

Almost surely, 231246012 is an apocalyptic number.

It is an amenable number.

31246012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31246012 is a wasteful number, since it uses less digits than its factorization.

31246012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115940 (or 1115938 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 31246012 is about 5589.8132348049. The cubic root of 31246012 is about 314.9668630633.

The spelling of 31246012 in words is "thirty-one million, two hundred forty-six thousand, twelve".

Divisors: 1 2 4 7 14 28 1115929 2231858 4463716 7811503 15623006 31246012