Base | Representation |
---|---|
bin | 1010011011010… |
… | …00010000101100 |
3 | 20002120101000001 |
4 | 11031220100230 |
5 | 134342140420 |
6 | 12402314044 |
7 | 2111250046 |
oct | 515502054 |
9 | 202511001 |
10 | 87458860 |
11 | 45406155 |
12 | 25358924 |
13 | 15172408 |
14 | b888a96 |
15 | 7a28b0a |
hex | 536842c |
87458860 has 24 divisors (see below), whose sum is σ = 183886416. Its totient is φ = 34941120.
The previous prime is 87458837. The next prime is 87458873. The reversal of 87458860 is 6885478.
It is a self number, because there is not a number n which added to its sum of digits gives 87458860.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18279 + ... + 22561.
It is an arithmetic number, because the mean of its divisors is an integer number (7661934).
Almost surely, 287458860 is an apocalyptic number.
It is an amenable number.
87458860 is an abundant number, since it is smaller than the sum of its proper divisors (96427556).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87458860 is a wasteful number, since it uses less digits than its factorization.
87458860 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5313 (or 5311 counting only the distinct ones).
The product of its (nonzero) digits is 430080, while the sum is 46.
The square root of 87458860 is about 9351.9441828959. The cubic root of 87458860 is about 443.8824121151.
The spelling of 87458860 in words is "eighty-seven million, four hundred fifty-eight thousand, eight hundred sixty".
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