Base | Representation |
---|---|
bin | 1110111100101… |
… | …00010010000011 |
3 | 22201221100212120 |
4 | 13132110102003 |
5 | 224044403112 |
6 | 20235255323 |
7 | 3051531261 |
oct | 736242203 |
9 | 281840776 |
10 | 125387907 |
11 | 64861877 |
12 | 35baa543 |
13 | 1cc92438 |
14 | 1291d431 |
15 | b01be8c |
hex | 7794483 |
125387907 has 8 divisors (see below), whose sum is σ = 167235600. Its totient is φ = 83566080.
The previous prime is 125387891. The next prime is 125387947. The reversal of 125387907 is 709783521.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 125387907 - 24 = 125387891 is a prime.
It is not an unprimeable number, because it can be changed into a prime (125387947) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16107 + ... + 22587.
It is an arithmetic number, because the mean of its divisors is an integer number (20904450).
Almost surely, 2125387907 is an apocalyptic number.
125387907 is a deficient number, since it is larger than the sum of its proper divisors (41847693).
125387907 is an equidigital number, since it uses as much as digits as its factorization.
125387907 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12933.
The product of its (nonzero) digits is 105840, while the sum is 42.
The square root of 125387907 is about 11197.6741781497. The cubic root of 125387907 is about 500.5166752428.
The spelling of 125387907 in words is "one hundred twenty-five million, three hundred eighty-seven thousand, nine hundred seven".
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