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28147016718 = 2322243697157
BaseRepresentation
bin11010001101101100…
…010110010000001110
32200122121120121011200
4122031230112100032
5430121114013333
620533000130330
72014336460142
oct321554262016
980577517150
1028147016718
1110a34291297
1255564669a6
132867513aa2
1415102dd222
15aeb106c13
hex68db1640e

28147016718 has 24 divisors (see below), whose sum is σ = 61012479528. Its totient is φ = 9378142512.

The previous prime is 28147016657. The next prime is 28147016741. The reversal of 28147016718 is 81761074182.

28147016718 is a `hidden beast` number, since 2 + 8 + 1 + 470 + 167 + 18 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308205 + ... + 388952.

It is an arithmetic number, because the mean of its divisors is an integer number (2542186647).

Almost surely, 228147016718 is an apocalyptic number.

28147016718 is an abundant number, since it is smaller than the sum of its proper divisors (32865462810).

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

28147016718 is a wasteful number, since it uses less digits than its factorization.

28147016718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699408 (or 699405 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The spelling of 28147016718 in words is "twenty-eight billion, one hundred forty-seven million, sixteen thousand, seven hundred eighteen".

Divisors: 1 2 3 6 9 18 2243 4486 6729 13458 20187 40374 697157 1394314 2091471 4182942 6274413 12548826 1563723151 3127446302 4691169453 9382338906 14073508359 28147016718