Base | Representation |
---|---|
bin | 1010011001000… |
… | …01000001001101 |
3 | 20002000112201101 |
4 | 11030201001031 |
5 | 134303321203 |
6 | 12352143101 |
7 | 2105623231 |
oct | 514410115 |
9 | 202015641 |
10 | 87167053 |
11 | 45226996 |
12 | 25237a91 |
13 | 1509c64c |
14 | b8105c1 |
15 | 79bc41d |
hex | 532104d |
87167053 has 4 divisors (see below), whose sum is σ = 87212700. Its totient is φ = 87121408.
The previous prime is 87167051. The next prime is 87167077. The reversal of 87167053 is 35076178.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35076178 = 2 ⋅17538089.
It can be written as a sum of positive squares in 2 ways, for example, as 17994564 + 69172489 = 4242^2 + 8317^2 .
It is a cyclic number.
It is not a de Polignac number, because 87167053 - 21 = 87167051 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87167051) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19828 + ... + 23821.
It is an arithmetic number, because the mean of its divisors is an integer number (21803175).
Almost surely, 287167053 is an apocalyptic number.
It is an amenable number.
87167053 is a deficient number, since it is larger than the sum of its proper divisors (45647).
87167053 is a wasteful number, since it uses less digits than its factorization.
87167053 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45646.
The product of its (nonzero) digits is 35280, while the sum is 37.
The square root of 87167053 is about 9336.3297392498. The cubic root of 87167053 is about 443.3881899569.
The spelling of 87167053 in words is "eighty-seven million, one hundred sixty-seven thousand, fifty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.062 sec. • engine limits •