Base | Representation |
---|---|
bin | 1010011000111… |
… | …10110001110100 |
3 | 20002000002010111 |
4 | 11030132301310 |
5 | 134303023001 |
6 | 12352032404 |
7 | 2105554411 |
oct | 514366164 |
9 | 202002114 |
10 | 87157876 |
11 | 45220003 |
12 | 25232704 |
13 | 15098410 |
14 | b80b108 |
15 | 79b9851 |
hex | 531ec74 |
87157876 has 36 divisors (see below), whose sum is σ = 170203852. Its totient is φ = 38820096.
The previous prime is 87157867. The next prime is 87157877. The reversal of 87157876 is 67875178.
It can be written as a sum of positive squares in 6 ways, for example, as 220900 + 86936976 = 470^2 + 9324^2 .
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87157877) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42736 + ... + 44728.
Almost surely, 287157876 is an apocalyptic number.
It is an amenable number.
87157876 is a deficient number, since it is larger than the sum of its proper divisors (83045976).
87157876 is a wasteful number, since it uses less digits than its factorization.
87157876 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2068 (or 2037 counting only the distinct ones).
The product of its digits is 658560, while the sum is 49.
The square root of 87157876 is about 9335.8382590960. The cubic root of 87157876 is about 443.3726293520.
The spelling of 87157876 in words is "eighty-seven million, one hundred fifty-seven thousand, eight hundred seventy-six".
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