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28570680417 = 3149289722063
BaseRepresentation
bin11010100110111100…
…011111110001100001
32201202010202221111210
4122212330133301201
5432003043233132
621043012500333
72031002530236
oct324674376141
981663687453
1028570680417
111113144a084
12565431a6a9
13290421c276
1415506a378d
15b233e1bcc
hex6a6f1fc61

28570680417 has 16 divisors (see below), whose sum is σ = 38364883200. Its totient is φ = 18911899392.

The previous prime is 28570680371. The next prime is 28570680419. The reversal of 28570680417 is 71408607582.

It is not a de Polignac number, because 28570680417 - 26 = 28570680353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28570680419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1283928 + ... + 1305990.

It is an arithmetic number, because the mean of its divisors is an integer number (2397805200).

Almost surely, 228570680417 is an apocalyptic number.

It is an amenable number.

28570680417 is a deficient number, since it is larger than the sum of its proper divisors (9794202783).

28570680417 is a wasteful number, since it uses less digits than its factorization.

28570680417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25112.

The product of its (nonzero) digits is 752640, while the sum is 48.

The spelling of 28570680417 in words is "twenty-eight billion, five hundred seventy million, six hundred eighty thousand, four hundred seventeen".

Divisors: 1 3 149 447 2897 8691 22063 66189 431653 1294959 3287387 9862161 63916511 191749533 9523560139 28570680417