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15201210051 = 321689023339
BaseRepresentation
bin11100010100001000…
…00000111011000011
31110020101202110222200
432022010000323003
5222113002210201
610552222404243
71045462103436
oct161204007303
943211673880
1015201210051
1164a0761115
122b42a30683
131583438061
14a42c3d81d
155de80c386
hex38a100ec3

15201210051 has 6 divisors (see below), whose sum is σ = 21957303420. Its totient is φ = 10134140028.

The previous prime is 15201210007. The next prime is 15201210133. The reversal of 15201210051 is 15001210251.

It is not a de Polignac number, because 15201210051 - 26 = 15201209987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15201210151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 844511661 + ... + 844511678.

It is an arithmetic number, because the mean of its divisors is an integer number (3659550570).

Almost surely, 215201210051 is an apocalyptic number.

15201210051 is a deficient number, since it is larger than the sum of its proper divisors (6756093369).

15201210051 is a wasteful number, since it uses less digits than its factorization.

15201210051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689023345 (or 1689023342 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The spelling of 15201210051 in words is "fifteen billion, two hundred one million, two hundred ten thousand, fifty-one".

Divisors: 1 3 9 1689023339 5067070017 15201210051