Base | Representation |
---|---|
bin | 1010011001000… |
… | …01010101100101 |
3 | 20002000121111200 |
4 | 11030201111211 |
5 | 134303341412 |
6 | 12352153113 |
7 | 2105630103 |
oct | 514412545 |
9 | 202017450 |
10 | 87168357 |
11 | 45227971 |
12 | 25238799 |
13 | 150a0113 |
14 | b810c73 |
15 | 79bc9dc |
hex | 5321565 |
87168357 has 12 divisors (see below), whose sum is σ = 125991840. Its totient is φ = 58074408.
The previous prime is 87168331. The next prime is 87168359. The reversal of 87168357 is 75386178.
It is not a de Polignac number, because 87168357 - 214 = 87151973 is a prime.
It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87168359) 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, 21994 + ... + 25652.
It is an arithmetic number, because the mean of its divisors is an integer number (10499320).
Almost surely, 287168357 is an apocalyptic number.
It is an amenable number.
87168357 is a deficient number, since it is larger than the sum of its proper divisors (38823483).
87168357 is a wasteful number, since it uses less digits than its factorization.
87168357 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6312 (or 6309 counting only the distinct ones).
The product of its digits is 282240, while the sum is 45.
The square root of 87168357 is about 9336.3995737115. The cubic root of 87168357 is about 443.3904009426.
The spelling of 87168357 in words is "eighty-seven million, one hundred sixty-eight thousand, three hundred fifty-seven".
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