Base | Representation |
---|---|
bin | 10111101000100010… |
… | …00110001101101111 |
3 | 1012202020211002101102 |
4 | 23310101012031233 |
5 | 201441120312244 |
6 | 5455005033315 |
7 | 626264464256 |
oct | 136421061557 |
9 | 35666732342 |
10 | 12688057199 |
11 | 5421094194 |
12 | 256125583b |
13 | 1272881c6c |
14 | 88516779d |
15 | 4e3d8454e |
hex | 2f444636f |
12688057199 has 8 divisors (see below), whose sum is σ = 12728768640. Its totient is φ = 12647410776.
The previous prime is 12688057181. The next prime is 12688057211. The reversal of 12688057199 is 99175088621.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12688057199 - 228 = 12419621743 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12688057099) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390812 + ... + 422030.
It is an arithmetic number, because the mean of its divisors is an integer number (1591096080).
Almost surely, 212688057199 is an apocalyptic number.
12688057199 is a deficient number, since it is larger than the sum of its proper divisors (40711441).
12688057199 is an equidigital number, since it uses as much as digits as its factorization.
12688057199 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 32509.
The product of its (nonzero) digits is 2177280, while the sum is 56.
The spelling of 12688057199 in words is "twelve billion, six hundred eighty-eight million, fifty-seven thousand, one hundred ninety-nine".
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