Base | Representation |
---|---|
bin | 1110111111011… |
… | …01001011011111 |
3 | 22202121212100122 |
4 | 13133231023133 |
5 | 224143031111 |
6 | 20251145155 |
7 | 3054605666 |
oct | 737551337 |
9 | 282555318 |
10 | 125752031 |
11 | 64a903a9 |
12 | 361451bb |
13 | 2008c0b2 |
14 | 129b5ddd |
15 | b08ecdb |
hex | 77ed2df |
125752031 has 2 divisors, whose sum is σ = 125752032. Its totient is φ = 125752030.
The previous prime is 125752019. The next prime is 125752037. The reversal of 125752031 is 130257521.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 125752031 - 218 = 125489887 is a prime.
It is a super-2 number, since 2×1257520312 = 31627146601249922, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (125752037) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62876015 + 62876016.
It is an arithmetic number, because the mean of its divisors is an integer number (62876016).
Almost surely, 2125752031 is an apocalyptic number.
125752031 is a deficient number, since it is larger than the sum of its proper divisors (1).
125752031 is an equidigital number, since it uses as much as digits as its factorization.
125752031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2100, while the sum is 26.
The square root of 125752031 is about 11213.9213034513. The cubic root of 125752031 is about 501.0007038475. Note that the first 3 decimals are identical.
The spelling of 125752031 in words is "one hundred twenty-five million, seven hundred fifty-two thousand, thirty-one".
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