Base | Representation |
---|---|
bin | 1110111111110… |
… | …11000001000001 |
3 | 22202201202002200 |
4 | 13133323001001 |
5 | 224201334310 |
6 | 20252303413 |
7 | 3055233141 |
oct | 737730101 |
9 | 282652080 |
10 | 125808705 |
11 | 65019a40 |
12 | 36171b69 |
13 | 200abb29 |
14 | 129cc921 |
15 | b0a19c0 |
hex | 77fb041 |
125808705 has 48 divisors (see below), whose sum is σ = 243734400. Its totient is φ = 59500800.
The previous prime is 125808703. The next prime is 125808719. The reversal of 125808705 is 507808521.
125808705 is a `hidden beast` number, since 1 + 2 + 580 + 8 + 70 + 5 = 666.
125808705 is nontrivially palindromic in base 14.
It is not a de Polignac number, because 125808705 - 21 = 125808703 is a prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 125808705.
It is not an unprimeable number, because it can be changed into a prime (125808703) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17196 + ... + 23394.
It is an arithmetic number, because the mean of its divisors is an integer number (5077800).
Almost surely, 2125808705 is an apocalyptic number.
125808705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
125808705 is a deficient number, since it is larger than the sum of its proper divisors (117925695).
125808705 is a wasteful number, since it uses less digits than its factorization.
125808705 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6262 (or 6259 counting only the distinct ones).
The product of its (nonzero) digits is 22400, while the sum is 36.
The square root of 125808705 is about 11216.4479671597. The cubic root of 125808705 is about 501.0759563086.
The spelling of 125808705 in words is "one hundred twenty-five million, eight hundred eight thousand, seven hundred five".
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