Base | Representation |
---|---|
bin | 1111100110000… |
… | …11110111010111 |
3 | 100010011122002211 |
4 | 13303003313113 |
5 | 231442410222 |
6 | 20552014251 |
7 | 3145666666 |
oct | 763036727 |
9 | 303148084 |
10 | 130825687 |
11 | 67936303 |
12 | 37991387 |
13 | 21147565 |
14 | 13536ddd |
15 | b743277 |
hex | 7cc3dd7 |
130825687 has 2 divisors, whose sum is σ = 130825688. Its totient is φ = 130825686.
The previous prime is 130825661. The next prime is 130825691. The reversal of 130825687 is 786528031.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 130825687 - 27 = 130825559 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130825657) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65412843 + 65412844.
It is an arithmetic number, because the mean of its divisors is an integer number (65412844).
Almost surely, 2130825687 is an apocalyptic number.
130825687 is a deficient number, since it is larger than the sum of its proper divisors (1).
130825687 is an equidigital number, since it uses as much as digits as its factorization.
130825687 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 80640, while the sum is 40.
The square root of 130825687 is about 11437.9057086514. The cubic root of 130825687 is about 507.6499425098.
It can be divided in two parts, 13082 and 5687, that added together give a square (18769 = 1372).
The spelling of 130825687 in words is "one hundred thirty million, eight hundred twenty-five thousand, six hundred eighty-seven".
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