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30442832 = 247271811
BaseRepresentation
bin111010000100…
…0010101010000
32010021122201022
41310020111100
530243132312
63004255012
7516521420
oct164102520
963248638
1030442832
1116203172
12a241468
1363cb714
144086480
152a15172
hex1d08550

30442832 has 20 divisors (see below), whose sum is σ = 67409376. Its totient is φ = 13046880.

The previous prime is 30442831. The next prime is 30442859. The reversal of 30442832 is 23824403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135794 + ... + 136017.

Almost surely, 230442832 is an apocalyptic number.

It is an amenable number.

30442832 is an abundant number, since it is smaller than the sum of its proper divisors (36966544).

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

30442832 is a wasteful number, since it uses less digits than its factorization.

30442832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271826 (or 271820 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 30442832 is about 5517.5023334839. The cubic root of 30442832 is about 312.2446579783.

The spelling of 30442832 in words is "thirty million, four hundred forty-two thousand, eight hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 271811 543622 1087244 1902677 2174488 3805354 4348976 7610708 15221416 30442832