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28134546715 = 511255218423
BaseRepresentation
bin11010001100111100…
…110001110100011011
32200121202010001112201
4122030330301310123
5430104420443330
620531432551031
72014125462352
oct321474616433
980552101481
1028134546715
1110a28244400
125552252477
132864a68ba2
14150c7b4999
15ae9e91eca
hex68cf31d1b

28134546715 has 24 divisors (see below), whose sum is σ = 37120827744. Its totient is φ = 20455353600.

The previous prime is 28134546709. The next prime is 28134546721. The reversal of 28134546715 is 51764543182.

It is an interprime number because it is at equal distance from previous prime (28134546709) and next prime (28134546721).

It is not a de Polignac number, because 28134546715 - 25 = 28134546683 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3335994 + ... + 3344416.

It is an arithmetic number, because the mean of its divisors is an integer number (1546701156).

Almost surely, 228134546715 is an apocalyptic number.

28134546715 is a deficient number, since it is larger than the sum of its proper divisors (8986281029).

28134546715 is a wasteful number, since it uses less digits than its factorization.

28134546715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13971 (or 13960 counting only the distinct ones).

The product of its digits is 806400, while the sum is 46.

The spelling of 28134546715 in words is "twenty-eight billion, one hundred thirty-four million, five hundred forty-six thousand, seven hundred fifteen".

Divisors: 1 5 11 55 121 605 5521 8423 27605 42115 60731 92653 303655 463265 668041 1019183 3340205 5095915 46503383 232516915 511537213 2557686065 5626909343 28134546715