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15055012144 = 242251418009
BaseRepresentation
bin11100000010101100…
…10100000100110000
31102212012122212011101
432001112110010300
5221313040342034
610525521054144
71042035330454
oct160126240460
942765585141
1015055012144
1164261864a7
122b01a87354
13155c06a913
14a2b664664
155d1a7e514
hex381594130

15055012144 has 20 divisors (see below), whose sum is σ = 29182114120. Its totient is φ = 7524144000.

The previous prime is 15055012111. The next prime is 15055012151. The reversal of 15055012144 is 44121055051.

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, 172989 + ... + 245020.

It is an arithmetic number, because the mean of its divisors is an integer number (1459105706).

Almost surely, 215055012144 is an apocalyptic number.

It is an amenable number.

15055012144 is a deficient number, since it is larger than the sum of its proper divisors (14127101976).

15055012144 is a wasteful number, since it uses less digits than its factorization.

15055012144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420268 (or 420262 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 15055012144 its reverse (44121055051), we get a palindrome (59176067195).

The spelling of 15055012144 in words is "fifteen billion, fifty-five million, twelve thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 2251 4502 9004 18008 36016 418009 836018 1672036 3344072 6688144 940938259 1881876518 3763753036 7527506072 15055012144