Base | Representation |
---|---|
bin | 1010011000101… |
… | …10101011011010 |
3 | 20001221101121200 |
4 | 11030112223122 |
5 | 134300442243 |
6 | 12351215030 |
7 | 2105355603 |
oct | 514265332 |
9 | 201841550 |
10 | 87124698 |
11 | 451a8091 |
12 | 25217476 |
13 | 1508629b |
14 | b7dcdaa |
15 | 79aead3 |
hex | 5316ada |
87124698 has 12 divisors (see below), whose sum is σ = 188770218. Its totient is φ = 29041560.
The previous prime is 87124693. The next prime is 87124717. The reversal of 87124698 is 89642178.
It can be written as a sum of positive squares in only one way, i.e., 86992929 + 131769 = 9327^2 + 363^2 .
It is not an unprimeable number, because it can be changed into a prime (87124691) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2420113 + ... + 2420148.
Almost surely, 287124698 is an apocalyptic number.
87124698 is an abundant number, since it is smaller than the sum of its proper divisors (101645520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87124698 is a wasteful number, since it uses less digits than its factorization.
87124698 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4840269 (or 4840266 counting only the distinct ones).
The product of its digits is 193536, while the sum is 45.
The square root of 87124698 is about 9334.0611740014. The cubic root of 87124698 is about 443.3163633180.
The spelling of 87124698 in words is "eighty-seven million, one hundred twenty-four thousand, six hundred ninety-eight".
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