Base | Representation |
---|---|
bin | 1110111001101… |
… | …11100010000111 |
3 | 22201020001202012 |
4 | 13130313202013 |
5 | 224000224012 |
6 | 20223204435 |
7 | 3045356555 |
oct | 734674207 |
9 | 281201665 |
10 | 125008007 |
11 | 64622403 |
12 | 35a4671b |
13 | 1cb8b547 |
14 | 12860bd5 |
15 | ae94622 |
hex | 7737887 |
125008007 has 2 divisors, whose sum is σ = 125008008. Its totient is φ = 125008006.
The previous prime is 125007989. The next prime is 125008031. The reversal of 125008007 is 700800521.
It is a weak prime.
It is an emirp because it is prime and its reverse (700800521) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 125008007 - 26 = 125007943 is a prime.
It is a super-2 number, since 2×1250080072 = 31254003628224098, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (125008307) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62504003 + 62504004.
It is an arithmetic number, because the mean of its divisors is an integer number (62504004).
Almost surely, 2125008007 is an apocalyptic number.
125008007 is a deficient number, since it is larger than the sum of its proper divisors (1).
125008007 is an equidigital number, since it uses as much as digits as its factorization.
125008007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 560, while the sum is 23.
The square root of 125008007 is about 11180.6979656907. The cubic root of 125008007 is about 500.0106757721.
Adding to 125008007 its reverse (700800521), we get a palindrome (825808528).
The spelling of 125008007 in words is "one hundred twenty-five million, eight thousand, seven".
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