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30922668 = 2233740903
BaseRepresentation
bin111010111110…
…1011110101100
32011012000221000
41311331132230
530404011133
63022440300
7523560360
oct165753654
964160830
1030922668
1116500727
12a433090
136538c4a
14416d2a0
152aac413
hex1d7d7ac

30922668 has 48 divisors (see below), whose sum is σ = 91624960. Its totient is φ = 8834832.

The previous prime is 30922637. The next prime is 30922673. The reversal of 30922668 is 86622903.

It is a super-2 number, since 2×309226682 = 1912422792476448, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19696 + ... + 21207.

Almost surely, 230922668 is an apocalyptic number.

It is an amenable number.

30922668 is an abundant number, since it is smaller than the sum of its proper divisors (60702292).

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

30922668 is a wasteful number, since it uses less digits than its factorization.

30922668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40923 (or 40915 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 30922668 is about 5560.8154078336. The cubic root of 30922668 is about 313.8766334851.

The spelling of 30922668 in words is "thirty million, nine hundred twenty-two thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 189 252 378 756 40903 81806 122709 163612 245418 286321 368127 490836 572642 736254 858963 1104381 1145284 1472508 1717926 2208762 2576889 3435852 4417524 5153778 7730667 10307556 15461334 30922668