Base | Representation |
---|---|
bin | 1010011010100… |
… | …10100011110000 |
3 | 20002101212001202 |
4 | 11031102203300 |
5 | 134331314333 |
6 | 12400350332 |
7 | 2110426640 |
oct | 515224360 |
9 | 202355052 |
10 | 87369968 |
11 | 45355394 |
12 | 253153a8 |
13 | 15140b0a |
14 | b864520 |
15 | 7a0c5e8 |
hex | 53528f0 |
87369968 has 40 divisors (see below), whose sum is σ = 193901280. Its totient is φ = 37359360.
The previous prime is 87369929. The next prime is 87369983. The reversal of 87369968 is 86996378.
It is a super-2 number, since 2×873699682 = 15267022616642048, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (56).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92378 + ... + 93318.
It is an arithmetic number, because the mean of its divisors is an integer number (4847532).
Almost surely, 287369968 is an apocalyptic number.
It is an amenable number.
87369968 is an abundant number, since it is smaller than the sum of its proper divisors (106531312).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87369968 is a wasteful number, since it uses less digits than its factorization.
87369968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1785 (or 1779 counting only the distinct ones).
The product of its digits is 3919104, while the sum is 56.
The square root of 87369968 is about 9347.1903800019. The cubic root of 87369968 is about 443.7319757805.
The spelling of 87369968 in words is "eighty-seven million, three hundred sixty-nine thousand, nine hundred sixty-eight".
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