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28272025286 = 250972738201
BaseRepresentation
bin11010010101001001…
…001101111011000110
32200222022210200200122
4122111021031323012
5430400114302121
620553223341542
72020415151461
oct322511157306
980868720618
1028272025286
1110a9890405a
1255902b18b2
1328873a265b
141522b602d8
15b0709b5ab
hex69524dec6

28272025286 has 16 divisors (see below), whose sum is σ = 42550915680. Its totient is φ = 14088465600.

The previous prime is 28272025283. The next prime is 28272025307. The reversal of 28272025286 is 68252027282.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28272025283) 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, 720986 + ... + 759186.

It is an arithmetic number, because the mean of its divisors is an integer number (2659432230).

Almost surely, 228272025286 is an apocalyptic number.

28272025286 is a deficient number, since it is larger than the sum of its proper divisors (14278890394).

28272025286 is a wasteful number, since it uses less digits than its factorization.

28272025286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39439.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 28272025286 in words is "twenty-eight billion, two hundred seventy-two million, twenty-five thousand, two hundred eighty-six".

Divisors: 1 2 509 727 1018 1454 38201 76402 370043 740086 19444309 27772127 38888618 55544254 14136012643 28272025286