Base | Representation |
---|---|
bin | 10111101000100100… |
… | …10011001110101101 |
3 | 1012202021102010002220 |
4 | 23310102103032231 |
5 | 201441210411103 |
6 | 5455015505553 |
7 | 626300250045 |
oct | 136422231655 |
9 | 35667363086 |
10 | 12688372653 |
11 | 542128a1a0 |
12 | 25613882b9 |
13 | 1272962718 |
14 | 88520a725 |
15 | 4e3de7c53 |
hex | 2f44933ad |
12688372653 has 16 divisors (see below), whose sum is σ = 19427174400. Its totient is φ = 7285189680.
The previous prime is 12688372607. The next prime is 12688372663. The reversal of 12688372653 is 35627388621.
It is a happy number.
It is not a de Polignac number, because 12688372653 - 217 = 12688241581 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12688372596 and 12688372605.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12688372663) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10117693 + ... + 10118946.
It is an arithmetic number, because the mean of its divisors is an integer number (1214198400).
Almost surely, 212688372653 is an apocalyptic number.
It is an amenable number.
12688372653 is a deficient number, since it is larger than the sum of its proper divisors (6738801747).
12688372653 is a wasteful number, since it uses less digits than its factorization.
12688372653 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20236672.
The product of its digits is 2903040, while the sum is 51.
The spelling of 12688372653 in words is "twelve billion, six hundred eighty-eight million, three hundred seventy-two thousand, six hundred fifty-three".
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