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28061075836 = 2251769135511
BaseRepresentation
bin11010001000100100…
…100000100101111100
32200102121212100110001
4122020210200211330
5424432113411321
620520250124044
72012244131503
oct321044404574
980377770401
1028061075836
111099a822672
125531720624
1328527835b1
141502b2b83a
15ae37ccc91
hex68892097c

28061075836 has 12 divisors (see below), whose sum is σ = 49108193680. Its totient is φ = 14030163360.

The previous prime is 28061075771. The next prime is 28061075863. The reversal of 28061075836 is 63857016082.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 139321 + ... + 274831.

Almost surely, 228061075836 is an apocalyptic number.

It is an amenable number.

28061075836 is a deficient number, since it is larger than the sum of its proper divisors (21047117844).

28061075836 is a wasteful number, since it uses less digits than its factorization.

28061075836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187284 (or 187282 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 28061075836 in words is "twenty-eight billion, sixty-one million, seventy-five thousand, eight hundred thirty-six".

Divisors: 1 2 4 51769 103538 135511 207076 271022 542044 7015268959 14030537918 28061075836