Base | Representation |
---|---|
bin | 1010011000000… |
… | …10100110010000 |
3 | 20001210012210101 |
4 | 11030002212100 |
5 | 134240324243 |
6 | 12345342144 |
7 | 2104564033 |
oct | 514024620 |
9 | 201705711 |
10 | 87042448 |
11 | 45151309 |
12 | 25197954 |
13 | 15057a0c |
14 | b7bb01a |
15 | 799554d |
hex | 5302990 |
87042448 has 20 divisors (see below), whose sum is σ = 178565580. Its totient is φ = 40961024.
The previous prime is 87042407. The next prime is 87042479. The reversal of 87042448 is 84424078.
It can be written as a sum of positive squares in 2 ways, for example, as 79709184 + 7333264 = 8928^2 + 2708^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159733 + ... + 160276.
It is an arithmetic number, because the mean of its divisors is an integer number (8928279).
Almost surely, 287042448 is an apocalyptic number.
It is an amenable number.
87042448 is an abundant number, since it is smaller than the sum of its proper divisors (91523132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87042448 is a wasteful number, since it uses less digits than its factorization.
87042448 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 320034 (or 320028 counting only the distinct ones).
The product of its (nonzero) digits is 57344, while the sum is 37.
The square root of 87042448 is about 9329.6542272477. The cubic root of 87042448 is about 443.1768152451.
The spelling of 87042448 in words is "eighty-seven million, forty-two thousand, four hundred forty-eight".
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