Base | Representation |
---|---|
bin | 111100110001… |
… | …001100010000 |
3 | 1002222100000202 |
4 | 330301030100 |
5 | 13034231003 |
6 | 1325234332 |
7 | 252255344 |
oct | 74611420 |
9 | 32870022 |
10 | 15930128 |
11 | 8aa05a5 |
12 | 54029a8 |
13 | 33b9b16 |
14 | 2189624 |
15 | 15ea088 |
hex | f31310 |
15930128 has 40 divisors (see below), whose sum is σ = 32230080. Its totient is φ = 7620480.
The previous prime is 15930097. The next prime is 15930137. The reversal of 15930128 is 82103951.
It is a self number, because there is not a number n which added to its sum of digits gives 15930128.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41843 + ... + 42221.
It is an arithmetic number, because the mean of its divisors is an integer number (805752).
Almost surely, 215930128 is an apocalyptic number.
It is an amenable number.
15930128 is an abundant number, since it is smaller than the sum of its proper divisors (16299952).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
15930128 is a wasteful number, since it uses less digits than its factorization.
15930128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 495 (or 489 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 29.
The square root of 15930128 is about 3991.2564437781. The cubic root of 15930128 is about 251.6168697190.
The spelling of 15930128 in words is "fifteen million, nine hundred thirty thousand, one hundred twenty-eight".
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