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30326816 = 251372901
BaseRepresentation
bin111001110110…
…0000000100000
32010001202120102
41303230000200
530230424231
63002001532
7515526242
oct163540040
963052512
1030326816
1116133a93
12a1a62a8
13638a980
144056092
1529e0acb
hex1cec020

30326816 has 24 divisors (see below), whose sum is σ = 64299564. Its totient is φ = 13996800.

The previous prime is 30326809. The next prime is 30326833. The reversal of 30326816 is 61862303.

It can be written as a sum of positive squares in 2 ways, for example, as 29203216 + 1123600 = 5404^2 + 1060^2 .

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, 36035 + ... + 36866.

Almost surely, 230326816 is an apocalyptic number.

It is an amenable number.

30326816 is an abundant number, since it is smaller than the sum of its proper divisors (33972748).

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

30326816 is a wasteful number, since it uses less digits than its factorization.

30326816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72924 (or 72916 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30326816 is about 5506.9788450656. The cubic root of 30326816 is about 311.8475038242.

The spelling of 30326816 in words is "thirty million, three hundred twenty-six thousand, eight hundred sixteen".

Divisors: 1 2 4 8 13 16 26 32 52 104 208 416 72901 145802 291604 583208 947713 1166416 1895426 2332832 3790852 7581704 15163408 30326816