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15142244052 = 22313223743391
BaseRepresentation
bin11100001101000110…
…00100111011010100
31110002021210200211210
432012203010323110
5222002403302202
610542314501420
71044144644055
oct160643047324
943067720753
1015142244052
116470447091
122b27134870
131574160930
14a3909072c
155d9560c6c
hex3868c4ed4

15142244052 has 48 divisors (see below), whose sum is σ = 38067628032. Its totient is φ = 4656961920.

The previous prime is 15142244017. The next prime is 15142244059. The reversal of 15142244052 is 25044224151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142244059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 327277 + ... + 370667.

It is an arithmetic number, because the mean of its divisors is an integer number (793075584).

Almost surely, 215142244052 is an apocalyptic number.

15142244052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15142244052 is an abundant number, since it is smaller than the sum of its proper divisors (22925383980).

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

15142244052 is a wasteful number, since it uses less digits than its factorization.

15142244052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45648 (or 45646 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 15142244052 in words is "fifteen billion, one hundred forty-two million, two hundred forty-four thousand, fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 2237 4474 6711 8948 13422 26844 29081 43391 58162 86782 87243 116324 130173 173564 174486 260346 348972 520692 564083 1128166 1692249 2256332 3384498 6768996 97065667 194131334 291197001 388262668 582394002 1164788004 1261853671 2523707342 3785561013 5047414684 7571122026 15142244052