Base | Representation |
---|---|
bin | 101000101011110101… |
… | …0110000100111111101 |
3 | 22100111222101122120120 |
4 | 1101113222300213331 |
5 | 2412413231013200 |
6 | 104045354005153 |
7 | 6212054134140 |
oct | 1212752604775 |
9 | 270458348516 |
10 | 87370172925 |
11 | 34065204092 |
12 | 14b241167b9 |
13 | 8315037c99 |
14 | 432b934057 |
15 | 24155589a0 |
hex | 1457ab09fd |
87370172925 has 96 divisors (see below), whose sum is σ = 175020417024. Its totient is φ = 37607328000.
The previous prime is 87370172921. The next prime is 87370172947. The reversal of 87370172925 is 52927107378.
It is not a de Polignac number, because 87370172925 - 22 = 87370172921 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87370172921) by changing a digit.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 529630 + ... + 674720.
It is an arithmetic number, because the mean of its divisors is an integer number (1823129344).
Almost surely, 287370172925 is an apocalyptic number.
It is an amenable number.
87370172925 is an abundant number, since it is smaller than the sum of its proper divisors (87650244099).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87370172925 is a wasteful number, since it uses less digits than its factorization.
87370172925 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 145179 (or 145174 counting only the distinct ones).
The product of its (nonzero) digits is 1481760, while the sum is 51.
The spelling of 87370172925 in words is "eighty-seven billion, three hundred seventy million, one hundred seventy-two thousand, nine hundred twenty-five".
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