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30443507420 = 2251522175371
BaseRepresentation
bin11100010110100100…
…110000111011011100
32220120122211102011212
4130112210300323130
5444322014214140
621552514003552
72125263354254
oct342644607334
986518742155
1030443507420
1111a02625797
125a975765b8
132b4222a821
14168b2d6964
15bd2a33765
hex716930edc

30443507420 has 12 divisors (see below), whose sum is σ = 63931365624. Its totient is φ = 12177402960.

The previous prime is 30443507357. The next prime is 30443507431. The reversal of 30443507420 is 2470534403.

It is a congruent number.

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, 761087666 + ... + 761087705.

It is an arithmetic number, because the mean of its divisors is an integer number (5327613802).

Almost surely, 230443507420 is an apocalyptic number.

It is an amenable number.

30443507420 is an abundant number, since it is smaller than the sum of its proper divisors (33487858204).

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

30443507420 is a wasteful number, since it uses less digits than its factorization.

30443507420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522175380 (or 1522175378 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 32.

The spelling of 30443507420 in words is "thirty billion, four hundred forty-three million, five hundred seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 1522175371 3044350742 6088701484 7610876855 15221753710 30443507420