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30564474 = 2323321863
BaseRepresentation
bin111010010011…
…0000001111010
32010111211120120
41310212001322
530311030344
63011034110
7520536153
oct164460172
963454516
1030564474
11162865a6
12a29b936
136441bb5
1440b892a
152a3b219
hex1d2607a

30564474 has 16 divisors (see below), whose sum is σ = 61394112. Its totient is φ = 10143968.

The previous prime is 30564473. The next prime is 30564509. The reversal of 30564474 is 47446503.

It is a happy number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30564473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9534 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (3837132).

Almost surely, 230564474 is an apocalyptic number.

30564474 is an abundant number, since it is smaller than the sum of its proper divisors (30829638).

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

30564474 is a wasteful number, since it uses less digits than its factorization.

30564474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22101.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 30564474 is about 5528.5146287226. The cubic root of 30564474 is about 312.6599893303.

The spelling of 30564474 in words is "thirty million, five hundred sixty-four thousand, four hundred seventy-four".

Divisors: 1 2 3 6 233 466 699 1398 21863 43726 65589 131178 5094079 10188158 15282237 30564474