Base | Representation |
---|---|
bin | 1010011100111… |
… | …01011011101010 |
3 | 20002222102202100 |
4 | 11032131123222 |
5 | 134421123100 |
6 | 12411114230 |
7 | 2113145025 |
oct | 516353352 |
9 | 202872670 |
10 | 87676650 |
11 | 45544846 |
12 | 25442976 |
13 | 1521a599 |
14 | b9041bc |
15 | 7a6d400 |
hex | 539d6ea |
87676650 has 144 divisors (see below), whose sum is σ = 254441304. Its totient is φ = 21565440.
The previous prime is 87676637. The next prime is 87676661. The reversal of 87676650 is 5667678.
It can be written as a sum of positive squares in 12 ways, for example, as 8982009 + 78694641 = 2997^2 + 8871^2 .
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a junction number, because it is equal to n+sod(n) for n = 87676596 and 87676605.
It is an unprimeable number.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 558372 + ... + 558528.
Almost surely, 287676650 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87676650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127220652).
87676650 is an abundant number, since it is smaller than the sum of its proper divisors (166764654).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87676650 is a wasteful number, since it uses less digits than its factorization.
87676650 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 265 (or 257 counting only the distinct ones).
The product of its (nonzero) digits is 423360, while the sum is 45.
The square root of 87676650 is about 9363.5810457324. The cubic root of 87676650 is about 444.2505586022.
The spelling of 87676650 in words is "eighty-seven million, six hundred seventy-six thousand, six hundred fifty".
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