Base | Representation |
---|---|
bin | 1010011000111… |
… | …01011110000000 |
3 | 20001222210202211 |
4 | 11030131132000 |
5 | 134302340022 |
6 | 12351551504 |
7 | 2105532646 |
oct | 514353600 |
9 | 201883684 |
10 | 87152512 |
11 | 45216a77 |
12 | 2522b594 |
13 | 15095b45 |
14 | b809196 |
15 | 79b7e77 |
hex | 531d780 |
87152512 has 16 divisors (see below), whose sum is σ = 173624400. Its totient is φ = 43576192.
The previous prime is 87152509. The next prime is 87152521. The reversal of 87152512 is 21525178.
It is a tau number, because it is divible by the number of its divisors (16).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340312 + ... + 340567.
It is an arithmetic number, because the mean of its divisors is an integer number (10851525).
Almost surely, 287152512 is an apocalyptic number.
It is an amenable number.
87152512 is a deficient number, since it is larger than the sum of its proper divisors (86471888).
87152512 is an equidigital number, since it uses as much as digits as its factorization.
87152512 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 680893 (or 680881 counting only the distinct ones).
The product of its digits is 5600, while the sum is 31.
The square root of 87152512 is about 9335.5509746345. The cubic root of 87152512 is about 443.3635335989.
The spelling of 87152512 in words is "eighty-seven million, one hundred fifty-two thousand, five hundred twelve".
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