Base | Representation |
---|---|
bin | 11010100110111100… |
… | …011111110001100001 |
3 | 2201202010202221111210 |
4 | 122212330133301201 |
5 | 432003043233132 |
6 | 21043012500333 |
7 | 2031002530236 |
oct | 324674376141 |
9 | 81663687453 |
10 | 28570680417 |
11 | 1113144a084 |
12 | 565431a6a9 |
13 | 290421c276 |
14 | 15506a378d |
15 | b233e1bcc |
hex | 6a6f1fc61 |
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".
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