Base | Representation |
---|---|
bin | 1010011110111… |
… | …10011010001000 |
3 | 20010110221211110 |
4 | 11033132122020 |
5 | 140003132132 |
6 | 12420530320 |
7 | 2115333660 |
oct | 517363210 |
9 | 203427743 |
10 | 87942792 |
11 | 457067a3 |
12 | 255509a0 |
13 | 152b1772 |
14 | b9731a0 |
15 | 7ac21cc |
hex | 53de688 |
87942792 has 64 divisors (see below), whose sum is σ = 264499200. Its totient is φ = 23803200.
The previous prime is 87942787. The next prime is 87942797. The reversal of 87942792 is 29724978.
It is an interprime number because it is at equal distance from previous prime (87942787) and next prime (87942797).
It is not an unprimeable number, because it can be changed into a prime (87942797) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10584 + ... + 16967.
It is an arithmetic number, because the mean of its divisors is an integer number (4132800).
Almost surely, 287942792 is an apocalyptic number.
It is an amenable number.
87942792 is an abundant number, since it is smaller than the sum of its proper divisors (176556408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87942792 is a wasteful number, since it uses less digits than its factorization.
87942792 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27586 (or 27582 counting only the distinct ones).
The product of its digits is 508032, while the sum is 48.
The square root of 87942792 is about 9377.7818272766. The cubic root of 87942792 is about 444.6996112705.
The spelling of 87942792 in words is "eighty-seven million, nine hundred forty-two thousand, seven hundred ninety-two".
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