Base | Representation |
---|---|
bin | 1010011111010… |
… | …10101010000111 |
3 | 20010120111122210 |
4 | 11033222222013 |
5 | 140011233332 |
6 | 12421554503 |
7 | 2115633156 |
oct | 517525207 |
9 | 203514583 |
10 | 87992967 |
11 | 45740467 |
12 | 25575a33 |
13 | 152cb55a |
14 | b98759d |
15 | 7ad1ecc |
hex | 53eaa87 |
87992967 has 8 divisors (see below), whose sum is σ = 117627120. Its totient is φ = 58510400.
The previous prime is 87992953. The next prime is 87993001. The reversal of 87992967 is 76929978.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 87992967 - 28 = 87992711 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87994967) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36534 + ... + 38867.
It is an arithmetic number, because the mean of its divisors is an integer number (14703390).
Almost surely, 287992967 is an apocalyptic number.
87992967 is a deficient number, since it is larger than the sum of its proper divisors (29634153).
87992967 is a wasteful number, since it uses less digits than its factorization.
87992967 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 75793.
The product of its digits is 3429216, while the sum is 57.
The square root of 87992967 is about 9380.4566519973. The cubic root of 87992967 is about 444.7841683649.
The spelling of 87992967 in words is "eighty-seven million, nine hundred ninety-two thousand, nine hundred sixty-seven".
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