Base | Representation |
---|---|
bin | 10110100110001101… |
… | …01011000111011010 |
3 | 1011022110220000201211 |
4 | 23103012223013122 |
5 | 144321202123014 |
6 | 5323451533334 |
7 | 606430356430 |
oct | 132306530732 |
9 | 34273800654 |
10 | 12131676634 |
11 | 5166019240 |
12 | 2426a5a24a |
13 | 11b45194ac |
14 | 8312d6d50 |
15 | 4b00d0cc4 |
hex | 2d31ab1da |
12131676634 has 32 divisors (see below), whose sum is σ = 22761801216. Its totient is φ = 4711212720.
The previous prime is 12131676631. The next prime is 12131676649. The reversal of 12131676634 is 43667613121.
It is not an unprimeable number, because it can be changed into a prime (12131676631) 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, 81024 + ... + 175579.
It is an arithmetic number, because the mean of its divisors is an integer number (711306288).
Almost surely, 212131676634 is an apocalyptic number.
12131676634 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
12131676634 is a deficient number, since it is larger than the sum of its proper divisors (10630124582).
12131676634 is a wasteful number, since it uses less digits than its factorization.
12131676634 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 256930.
The product of its digits is 108864, while the sum is 40.
The spelling of 12131676634 in words is "twelve billion, one hundred thirty-one million, six hundred seventy-six thousand, six hundred thirty-four".
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