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30610420136 = 2319238755841
BaseRepresentation
bin11100100000100001…
…011111000110101000
32221000021220110101022
4130200201133012220
51000142231421021
622021235312012
72132361164252
oct344041370650
987007813338
1030610420136
1111a8886978a
125b2344b608
132b6a99b84a
1416a5544cd2
15be25041ab
hex72085f1a8

30610420136 has 32 divisors (see below), whose sum is σ = 63042062400. Its totient is φ = 13869250560.

The previous prime is 30610420129. The next prime is 30610420157. The reversal of 30610420136 is 63102401603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4374425 + ... + 4381416.

It is an arithmetic number, because the mean of its divisors is an integer number (1970064450).

Almost surely, 230610420136 is an apocalyptic number.

It is an amenable number.

30610420136 is an abundant number, since it is smaller than the sum of its proper divisors (32431642264).

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

30610420136 is a wasteful number, since it uses less digits than its factorization.

30610420136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755889 (or 8755885 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 30610420136 its reverse (63102401603), we get a palindrome (93712821739).

The spelling of 30610420136 in words is "thirty billion, six hundred ten million, four hundred twenty thousand, one hundred thirty-six".

Divisors: 1 2 4 8 19 23 38 46 76 92 152 184 437 874 1748 3496 8755841 17511682 35023364 70046728 166360979 201384343 332721958 402768686 665443916 805537372 1330887832 1611074744 3826302517 7652605034 15305210068 30610420136