Base | Representation |
---|---|
bin | 1011011001100… |
… | …1100100001000 |
3 | 10022222020201222 |
4 | 2312121210020 |
5 | 44220034140 |
6 | 4424501212 |
7 | 1120264046 |
oct | 266314410 |
9 | 108866658 |
10 | 47814920 |
11 | 24a9906a |
12 | 1401a808 |
13 | 9ba196a |
14 | 64c9396 |
15 | 42e75b5 |
hex | 2d99908 |
47814920 has 32 divisors (see below), whose sum is σ = 107858520. Its totient is φ = 19077120.
The previous prime is 47814901. The next prime is 47814937. The reversal of 47814920 is 2941874.
It can be written as a sum of positive squares in 4 ways, for example, as 36699364 + 11115556 = 6058^2 + 3334^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17144 + ... + 19736.
Almost surely, 247814920 is an apocalyptic number.
47814920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
47814920 is an abundant number, since it is smaller than the sum of its proper divisors (60043600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47814920 is a wasteful number, since it uses less digits than its factorization.
47814920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3065 (or 3061 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 35.
The square root of 47814920 is about 6914.8333313248. The cubic root of 47814920 is about 362.9564159791.
The spelling of 47814920 in words is "forty-seven million, eight hundred fourteen thousand, nine hundred twenty".
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