Base | Representation |
---|---|
bin | 1011001110011… |
… | …0100001011000 |
3 | 10021120222202111 |
4 | 2303212201120 |
5 | 44023102220 |
6 | 4401042104 |
7 | 1111121011 |
oct | 263464130 |
9 | 107528674 |
10 | 47081560 |
11 | 24638089 |
12 | 13926334 |
13 | 99a5c16 |
14 | 6378008 |
15 | 420015a |
hex | 2ce6858 |
47081560 has 64 divisors (see below), whose sum is σ = 112020480. Its totient is φ = 17781120.
The previous prime is 47081549. The next prime is 47081561. The reversal of 47081560 is 6518074.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (47081561) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52879 + ... + 53761.
It is an arithmetic number, because the mean of its divisors is an integer number (1750320).
Almost surely, 247081560 is an apocalyptic number.
47081560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 47081560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56010240).
47081560 is an abundant number, since it is smaller than the sum of its proper divisors (64938920).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
47081560 is a wasteful number, since it uses less digits than its factorization.
47081560 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 968 (or 964 counting only the distinct ones).
The product of its (nonzero) digits is 6720, while the sum is 31.
The square root of 47081560 is about 6861.6003964090. The cubic root of 47081560 is about 361.0912362149.
The spelling of 47081560 in words is "forty-seven million, eighty-one thousand, five hundred sixty".
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