Base | Representation |
---|---|
bin | 1010011010101… |
… | …10011001101011 |
3 | 20002102122122200 |
4 | 11031112121223 |
5 | 134332320312 |
6 | 12400551243 |
7 | 2110523553 |
oct | 515263153 |
9 | 202378580 |
10 | 87385707 |
11 | 453661a2 |
12 | 25322523 |
13 | 15148026 |
14 | b86a163 |
15 | 7a120dc |
hex | 535666b |
87385707 has 12 divisors (see below), whose sum is σ = 126529104. Its totient is φ = 58116240.
The previous prime is 87385703. The next prime is 87385709. The reversal of 87385707 is 70758378.
87385707 is a `hidden beast` number, since 8 + 73 + 8 + 570 + 7 = 666.
It is not a de Polignac number, because 87385707 - 22 = 87385703 is a prime.
It is not an unprimeable number, because it can be changed into a prime (87385703) 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, 7743 + ... + 15320.
It is an arithmetic number, because the mean of its divisors is an integer number (10544092).
Almost surely, 287385707 is an apocalyptic number.
87385707 is a deficient number, since it is larger than the sum of its proper divisors (39143397).
87385707 is a wasteful number, since it uses less digits than its factorization.
87385707 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 23490 (or 23487 counting only the distinct ones).
The product of its (nonzero) digits is 329280, while the sum is 45.
The square root of 87385707 is about 9348.0322528327. The cubic root of 87385707 is about 443.7586191013.
The spelling of 87385707 in words is "eighty-seven million, three hundred eighty-five thousand, seven hundred seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •