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28275802752 = 273538713669
BaseRepresentation
bin11010010101010111…
…101000001010000000
32200222120220121101210
4122111113220022000
5430402101142002
620553440330120
72020462233501
oct322527501200
980876817353
1028275802752
1110a9aa5412a
125591613940
1328880c5b42
141523464ba8
15b0759596c
hex6955e8280

28275802752 has 64 divisors (see below), whose sum is σ = 75127039200. Its totient is φ = 9422828544.

The previous prime is 28275802733. The next prime is 28275802781. The reversal of 28275802752 is 25720857282.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2061774 + ... + 2075442.

Almost surely, 228275802752 is an apocalyptic number.

It is an amenable number.

28275802752 is an abundant number, since it is smaller than the sum of its proper divisors (46851236448).

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

28275802752 is a wasteful number, since it uses less digits than its factorization.

28275802752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19073 (or 19061 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 48.

The spelling of 28275802752 in words is "twenty-eight billion, two hundred seventy-five million, eight hundred two thousand, seven hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 5387 10774 13669 16161 21548 27338 32322 41007 43096 54676 64644 82014 86192 109352 129288 164028 172384 218704 258576 328056 344768 437408 517152 656112 689536 874816 1034304 1312224 1749632 2068608 2624448 5248896 73634903 147269806 220904709 294539612 441809418 589079224 883618836 1178158448 1767237672 2356316896 3534475344 4712633792 7068950688 9425267584 14137901376 28275802752