Base | Representation |
---|---|
bin | 10111010010000111… |
… | …01101111100000111 |
3 | 1012021010221211010012 |
4 | 23221003231330013 |
5 | 201100000004034 |
6 | 5424210220435 |
7 | 621522152126 |
oct | 135103557407 |
9 | 35233854105 |
10 | 12500000519 |
11 | 5334a19446 |
12 | 250a28471b |
13 | 1242919c16 |
14 | 8681b3abd |
15 | 4d25d8cce |
hex | 2e90edf07 |
12500000519 has 2 divisors, whose sum is σ = 12500000520. Its totient is φ = 12500000518.
The previous prime is 12500000507. The next prime is 12500000521. The reversal of 12500000519 is 91500000521.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12500000519 - 212 = 12499996423 is a prime.
It is a super-2 number, since 2×125000005192 (a number of 21 digits) contains 22 as substring.
Together with 12500000521, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 12500000494 and 12500000503.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12500000719) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250000259 + 6250000260.
It is an arithmetic number, because the mean of its divisors is an integer number (6250000260).
Almost surely, 212500000519 is an apocalyptic number.
12500000519 is a deficient number, since it is larger than the sum of its proper divisors (1).
12500000519 is an equidigital number, since it uses as much as digits as its factorization.
12500000519 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 450, while the sum is 23.
The spelling of 12500000519 in words is "twelve billion, five hundred million, five hundred nineteen", and thus it is an aban number.
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