Base | Representation |
---|---|
bin | 101100011101000010… |
… | …111100101000100000 |
3 | 11120012112002101220000 |
4 | 230131002330220200 |
5 | 1240223334432120 |
6 | 33532221220000 |
7 | 3306561620244 |
oct | 543502745040 |
9 | 146175071800 |
10 | 47731952160 |
11 | 19274496152 |
12 | 9301401600 |
13 | 4668c04299 |
14 | 244b41c424 |
15 | 13956d5990 |
hex | b1d0bca20 |
47731952160 has 120 divisors (see below), whose sum is σ = 168454060236. Its totient is φ = 12728517120.
The previous prime is 47731952137. The next prime is 47731952167. The reversal of 47731952160 is 6125913774.
47731952160 is a `hidden beast` number, since 47 + 73 + 19 + 521 + 6 + 0 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 46858395024 + 873557136 = 216468^2 + 29556^2 .
It is a tau number, because it is divible by the number of its divisors (120).
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (47731952167) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1828551 + ... + 1854470.
Almost surely, 247731952160 is an apocalyptic number.
47731952160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
47731952160 is an abundant number, since it is smaller than the sum of its proper divisors (120722108076).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47731952160 is a wasteful number, since it uses less digits than its factorization.
47731952160 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3683048 (or 3683031 counting only the distinct ones).
The product of its (nonzero) digits is 317520, while the sum is 45.
The spelling of 47731952160 in words is "forty-seven billion, seven hundred thirty-one million, nine hundred fifty-two thousand, one hundred sixty".
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