Base | Representation |
---|---|
bin | 1010011011000… |
… | …01010101011110 |
3 | 20002111221002110 |
4 | 11031201111132 |
5 | 134340233434 |
6 | 12401534450 |
7 | 2111101254 |
oct | 515412536 |
9 | 202457073 |
10 | 87430494 |
11 | 45396908 |
12 | 25344426 |
13 | 15162528 |
14 | b87c5d4 |
15 | 7a204e9 |
hex | 536155e |
87430494 has 32 divisors (see below), whose sum is σ = 178051104. Its totient is φ = 28615680.
The previous prime is 87430489. The next prime is 87430513. The reversal of 87430494 is 49403478.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189424 + ... + 189884.
It is an arithmetic number, because the mean of its divisors is an integer number (5564097).
Almost surely, 287430494 is an apocalyptic number.
87430494 is an abundant number, since it is smaller than the sum of its proper divisors (90620610).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87430494 is a wasteful number, since it uses less digits than its factorization.
87430494 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 972.
The product of its (nonzero) digits is 96768, while the sum is 39.
The square root of 87430494 is about 9350.4274768590. The cubic root of 87430494 is about 443.8344180068.
The spelling of 87430494 in words is "eighty-seven million, four hundred thirty thousand, four hundred ninety-four".
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