Base | Representation |
---|---|
bin | 10111110000001001… |
… | …01000101000110011 |
3 | 1012220200221121010111 |
4 | 23320010220220303 |
5 | 202103441233222 |
6 | 5505205242151 |
7 | 631001232436 |
oct | 137004505063 |
9 | 35820847114 |
10 | 12751899187 |
11 | 5454129665 |
12 | 257a703357 |
13 | 1282b758a1 |
14 | 88d82581d |
15 | 4e9795777 |
hex | 2f8128a33 |
12751899187 has 2 divisors, whose sum is σ = 12751899188. Its totient is φ = 12751899186.
The previous prime is 12751899161. The next prime is 12751899203. The reversal of 12751899187 is 78199815721.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12751899187 - 219 = 12751374899 is a prime.
It is a super-2 number, since 2×127518991872 (a number of 21 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (12751899107) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6375949593 + 6375949594.
It is an arithmetic number, because the mean of its divisors is an integer number (6375949594).
Almost surely, 212751899187 is an apocalyptic number.
12751899187 is a deficient number, since it is larger than the sum of its proper divisors (1).
12751899187 is an equidigital number, since it uses as much as digits as its factorization.
12751899187 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2540160, while the sum is 58.
The spelling of 12751899187 in words is "twelve billion, seven hundred fifty-one million, eight hundred ninety-nine thousand, one hundred eighty-seven".
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