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30916902 = 2322032339
BaseRepresentation
bin111010111110…
…0000100100110
32011011202000110
41311330010212
530403320102
63022353450
7523534512
oct165740446
964152013
1030916902
11164a7365
12a42b886
136536433
14416b142
152aaa86c
hex1d7c126

30916902 has 16 divisors (see below), whose sum is σ = 61888320. Its totient is φ = 10296552.

The previous prime is 30916891. The next prime is 30916903. The reversal of 30916902 is 20961903.

It is a self number, because there is not a number n which added to its sum of digits gives 30916902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30916903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12049 + ... + 14387.

It is an arithmetic number, because the mean of its divisors is an integer number (3868020).

Almost surely, 230916902 is an apocalyptic number.

30916902 is an abundant number, since it is smaller than the sum of its proper divisors (30971418).

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

30916902 is a wasteful number, since it uses less digits than its factorization.

30916902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 30916902 is about 5560.2969345171. The cubic root of 30916902 is about 313.8571232543.

The spelling of 30916902 in words is "thirty million, nine hundred sixteen thousand, nine hundred two".

Divisors: 1 2 3 6 2203 2339 4406 4678 6609 7017 13218 14034 5152817 10305634 15458451 30916902