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28667092160 = 265712797809
BaseRepresentation
bin11010101100101100…
…010001110011000000
32201222212012011120002
4122230230101303000
5432202233422120
621100335135132
72033253156110
oct325454216300
981885164502
1028667092160
111118090a703
1256806744a8
13291b1a7735
14155d3dd040
15b2bad8375
hex6acb11cc0

28667092160 has 56 divisors (see below), whose sum is σ = 78015449760. Its totient is φ = 9828716544.

The previous prime is 28667092141. The next prime is 28667092169. The reversal of 28667092160 is 6129076682.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (28667092169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6396665 + ... + 6401144.

Almost surely, 228667092160 is an apocalyptic number.

28667092160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28667092160 is an abundant number, since it is smaller than the sum of its proper divisors (49348357600).

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

28667092160 is a wasteful number, since it uses less digits than its factorization.

28667092160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12797833 (or 12797823 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 28667092160 in words is "twenty-eight billion, six hundred sixty-seven million, ninety-two thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 140 160 224 280 320 448 560 1120 2240 12797809 25595618 51191236 63989045 89584663 102382472 127978090 179169326 204764944 255956180 358338652 409529888 447923315 511912360 716677304 819059776 895846630 1023824720 1433354608 1791693260 2047649440 2866709216 3583386520 4095298880 5733418432 7166773040 14333546080 28667092160