Base | Representation |
---|---|
bin | 10111011111000000… |
… | …00011000110101010 |
3 | 1012112200100100202020 |
4 | 23233200003012222 |
5 | 201310132344123 |
6 | 5443031045310 |
7 | 624304000311 |
oct | 135740030652 |
9 | 35480310666 |
10 | 12608090538 |
11 | 538aa3603a |
12 | 253a510836 |
13 | 125c133b04 |
14 | 8786ad278 |
15 | 4dbd3a7e3 |
hex | 2ef8031aa |
12608090538 has 32 divisors (see below), whose sum is σ = 26282360832. Its totient is φ = 4027633200.
The previous prime is 12608090503. The next prime is 12608090567. The reversal of 12608090538 is 83509080621.
It is a self number, because there is not a number n which added to its sum of digits gives 12608090538.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309898 + ... + 348213.
It is an arithmetic number, because the mean of its divisors is an integer number (821323776).
Almost surely, 212608090538 is an apocalyptic number.
12608090538 is an abundant number, since it is smaller than the sum of its proper divisors (13674270294).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12608090538 is a wasteful number, since it uses less digits than its factorization.
12608090538 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 658250.
The product of its (nonzero) digits is 103680, while the sum is 42.
The spelling of 12608090538 in words is "twelve billion, six hundred eight million, ninety thousand, five hundred thirty-eight".
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