Base | Representation |
---|---|
bin | 100100011100001111… |
… | …111111100100101100 |
3 | 10201222221110220002120 |
4 | 210130033333210230 |
5 | 1120113414112033 |
6 | 25550410552540 |
7 | 2553434060505 |
oct | 443417774454 |
9 | 121887426076 |
10 | 39128660268 |
11 | 1565a121665 |
12 | 7700138750 |
13 | 38c76b2119 |
14 | 1c72991bac |
15 | 104026c1b3 |
hex | 91c3ff92c |
39128660268 has 48 divisors (see below), whose sum is σ = 96314211840. Its totient is φ = 12329582400.
The previous prime is 39128660251. The next prime is 39128660269. The reversal of 39128660268 is 86206682193.
It is a self number, because there is not a number n which added to its sum of digits gives 39128660268.
It is not an unprimeable number, because it can be changed into a prime (39128660269) 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, 81028 + ... + 291243.
It is an arithmetic number, because the mean of its divisors is an integer number (2006546080).
Almost surely, 239128660268 is an apocalyptic number.
39128660268 is a gapful number since it is divisible by the number (38) formed by its first and last digit.
It is an amenable number.
39128660268 is an abundant number, since it is smaller than the sum of its proper divisors (57185551572).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
39128660268 is a wasteful number, since it uses less digits than its factorization.
39128660268 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 372758 (or 372756 counting only the distinct ones).
The product of its (nonzero) digits is 1492992, while the sum is 51.
The spelling of 39128660268 in words is "thirty-nine billion, one hundred twenty-eight million, six hundred sixty thousand, two hundred sixty-eight".
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