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15372130464 = 253253375453
BaseRepresentation
bin11100101000100000…
…00001100010100000
31110200022101010201100
432110100001202200
5222440231133324
611021210034400
71052635644615
oct162420014240
943608333640
1015372130464
116579192159
122b90118a00
1315ac9802b2
14a5b81250c
155ee8204c9
hex3944018a0

15372130464 has 36 divisors (see below), whose sum is σ = 43714496826. Its totient is φ = 5124043392.

The previous prime is 15372130429. The next prime is 15372130471. The reversal of 15372130464 is 46403127351.

It can be written as a sum of positive squares in only one way, i.e., 14518322064 + 853808400 = 120492^2 + 29220^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26687439 + ... + 26688014.

Almost surely, 215372130464 is an apocalyptic number.

It is an amenable number.

15372130464 is an abundant number, since it is smaller than the sum of its proper divisors (28342366362).

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

15372130464 is a wasteful number, since it uses less digits than its factorization.

15372130464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53375469 (or 53375458 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 15372130464 in words is "fifteen billion, three hundred seventy-two million, one hundred thirty thousand, four hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 53375453 106750906 160126359 213501812 320252718 427003624 480379077 640505436 854007248 960758154 1281010872 1708014496 1921516308 2562021744 3843032616 5124043488 7686065232 15372130464