Base | Representation |
---|---|
bin | 10111110000001001… |
… | …01100101001010001 |
3 | 1012220200222102122102 |
4 | 23320010230221101 |
5 | 202103442244401 |
6 | 5505205450145 |
7 | 631001331335 |
oct | 137004545121 |
9 | 35820872572 |
10 | 12751915601 |
11 | 545413aa27 |
12 | 257a710955 |
13 | 1282b801b9 |
14 | 88d82b7c5 |
15 | 4e979a56b |
hex | 2f812ca51 |
12751915601 has 2 divisors, whose sum is σ = 12751915602. Its totient is φ = 12751915600.
The previous prime is 12751915549. The next prime is 12751915619. The reversal of 12751915601 is 10651915721.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10604056576 + 2147859025 = 102976^2 + 46345^2 .
It is an emirp because it is prime and its reverse (10651915721) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12751915601 - 26 = 12751915537 is a prime.
It is a super-2 number, since 2×127519156012 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12751915621) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375957800 + 6375957801.
It is an arithmetic number, because the mean of its divisors is an integer number (6375957801).
Almost surely, 212751915601 is an apocalyptic number.
It is an amenable number.
12751915601 is a deficient number, since it is larger than the sum of its proper divisors (1).
12751915601 is an equidigital number, since it uses as much as digits as its factorization.
12751915601 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 18900, while the sum is 38.
The spelling of 12751915601 in words is "twelve billion, seven hundred fifty-one million, nine hundred fifteen thousand, six hundred one".
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