Base | Representation |
---|---|
bin | 1101110011000… |
… | …0111011010111 |
3 | 11000220012120122 |
4 | 3130300323113 |
5 | 104303401322 |
6 | 5424222155 |
7 | 1301622200 |
oct | 334607327 |
9 | 130805518 |
10 | 57872087 |
11 | 2a738179 |
12 | 1746a95b |
13 | bcb3550 |
14 | 79865a7 |
15 | 5132442 |
hex | 3730ed7 |
57872087 has 24 divisors (see below), whose sum is σ = 74079936. Its totient is φ = 44791488.
The previous prime is 57872083. The next prime is 57872123. The reversal of 57872087 is 78027875.
It is not a de Polignac number, because 57872087 - 22 = 57872083 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57872083) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28973 + ... + 30905.
It is an arithmetic number, because the mean of its divisors is an integer number (3086664).
Almost surely, 257872087 is an apocalyptic number.
57872087 is a deficient number, since it is larger than the sum of its proper divisors (16207849).
57872087 is a wasteful number, since it uses less digits than its factorization.
57872087 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2007 (or 2000 counting only the distinct ones).
The product of its (nonzero) digits is 219520, while the sum is 44.
The square root of 57872087 is about 7607.3705707031. The cubic root of 57872087 is about 386.8028940166.
The spelling of 57872087 in words is "fifty-seven million, eight hundred seventy-two thousand, eighty-seven".
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