Base | Representation |
---|---|
bin | 1011011010100… |
… | …1001001101000 |
3 | 10100002111022102 |
4 | 2312221021220 |
5 | 44224110020 |
6 | 4430112532 |
7 | 1120651136 |
oct | 266511150 |
9 | 110074272 |
10 | 47878760 |
11 | 25032026 |
12 | 1404b748 |
13 | 9bc4a37 |
14 | 6504756 |
15 | 430b475 |
hex | 2da9268 |
47878760 has 32 divisors (see below), whose sum is σ = 108525960. Its totient is φ = 19009536.
The previous prime is 47878757. The next prime is 47878771. The reversal of 47878760 is 6787874.
It can be written as a sum of positive squares in 4 ways, for example, as 37625956 + 10252804 = 6134^2 + 3202^2 .
It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.
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, 1112 + ... + 9848.
Almost surely, 247878760 is an apocalyptic number.
47878760 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
47878760 is an abundant number, since it is smaller than the sum of its proper divisors (60647200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47878760 is a wasteful number, since it uses less digits than its factorization.
47878760 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8885 (or 8881 counting only the distinct ones).
The product of its (nonzero) digits is 526848, while the sum is 47.
The square root of 47878760 is about 6919.4479548588. The cubic root of 47878760 is about 363.1178776661.
The spelling of 47878760 in words is "forty-seven million, eight hundred seventy-eight thousand, seven hundred sixty".
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