Base | Representation |
---|---|
bin | 10111101110011100… |
… | …01100100001111111 |
3 | 1012212201002120010122 |
4 | 23313032030201333 |
5 | 202041313101122 |
6 | 5503535325155 |
7 | 630436024346 |
oct | 136716144177 |
9 | 35781076118 |
10 | 12737628287 |
11 | 544707172a |
12 | 25759807bb |
13 | 127cc1a077 |
14 | 88b98cb5d |
15 | 4e83c7142 |
hex | 2f738c87f |
12737628287 has 4 divisors (see below), whose sum is σ = 12739114080. Its totient is φ = 12736142496.
The previous prime is 12737628271. The next prime is 12737628289. The reversal of 12737628287 is 78282673721.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78282673721 = 7 ⋅11183239103.
It is a cyclic number.
It is not a de Polignac number, because 12737628287 - 24 = 12737628271 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 (12737628289) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729962 + ... + 747207.
It is an arithmetic number, because the mean of its divisors is an integer number (3184778520).
Almost surely, 212737628287 is an apocalyptic number.
12737628287 is a deficient number, since it is larger than the sum of its proper divisors (1485793).
12737628287 is an equidigital number, since it uses as much as digits as its factorization.
12737628287 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1485792.
The product of its digits is 3161088, while the sum is 53.
The spelling of 12737628287 in words is "twelve billion, seven hundred thirty-seven million, six hundred twenty-eight thousand, two hundred eighty-seven".
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