Base | Representation |
---|---|
bin | 11010000110110100… |
… | …111110011100010010 |
3 | 2200100120211220122010 |
4 | 122012310332130102 |
5 | 424402122303340 |
6 | 20513323323350 |
7 | 2011440456063 |
oct | 320664763422 |
9 | 80316756563 |
10 | 28031837970 |
11 | 10985272844 |
12 | 5523980556 |
13 | 28496b7496 |
14 | 14dccba56a |
15 | ae0e54b80 |
hex | 686d3e712 |
28031837970 has 16 divisors (see below), whose sum is σ = 67276411200. Its totient is φ = 7475156784.
The previous prime is 28031837963. The next prime is 28031837989. The reversal of 28031837970 is 7973813082.
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, 467197270 + ... + 467197329.
It is an arithmetic number, because the mean of its divisors is an integer number (4204775700).
Almost surely, 228031837970 is an apocalyptic number.
28031837970 is an abundant number, since it is smaller than the sum of its proper divisors (39244573230).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28031837970 is a wasteful number, since it uses less digits than its factorization.
28031837970 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 934394609.
The product of its (nonzero) digits is 508032, while the sum is 48.
The spelling of 28031837970 in words is "twenty-eight billion, thirty-one million, eight hundred thirty-seven thousand, nine hundred seventy".
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