Base | Representation |
---|---|
bin | 1000000101010110… |
… | …0010111000001100 |
3 | 12121020001210012200 |
4 | 2001111202320030 |
5 | 13420444034443 |
6 | 555152401500 |
7 | 104525630400 |
oct | 20125427014 |
9 | 5536053180 |
10 | 2169908748 |
11 | a13947617 |
12 | 506846290 |
13 | 287726c97 |
14 | 168287100 |
15 | ca775dd3 |
hex | 81562e0c |
2169908748 has 54 divisors (see below), whose sum is σ = 6380570196. Its totient is φ = 619973424.
The previous prime is 2169908717. The next prime is 2169908753. The reversal of 2169908748 is 8478099612.
It is a junction number, because it is equal to n+sod(n) for n = 2169908694 and 2169908703.
It is an unprimeable number.
It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 613290 + ... + 616817.
Almost surely, 22169908748 is an apocalyptic number.
2169908748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
2169908748 is an abundant number, since it is smaller than the sum of its proper divisors (4210661448).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2169908748 is a wasteful number, since it uses less digits than its factorization.
2169908748 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1230131 (or 1230119 counting only the distinct ones).
The product of its (nonzero) digits is 1741824, while the sum is 54.
The square root of 2169908748 is about 46582.2793345281. The cubic root of 2169908748 is about 1294.6344427161.
The spelling of 2169908748 in words is "two billion, one hundred sixty-nine million, nine hundred eight thousand, seven hundred forty-eight".
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