Base | Representation |
---|---|
bin | 10110111010110100… |
… | …00111011100001001 |
3 | 1011202112011200022002 |
4 | 23131122013130021 |
5 | 200144430424140 |
6 | 5352545040345 |
7 | 613626624425 |
oct | 133532073411 |
9 | 34675150262 |
10 | 12304545545 |
11 | 5244660206 |
12 | 24749260b5 |
13 | 12112945a6 |
14 | 84a255b85 |
15 | 4c037b415 |
hex | 2dd687709 |
12304545545 has 32 divisors (see below), whose sum is σ = 15383844000. Its totient is φ = 9439911936.
The previous prime is 12304545523. The next prime is 12304545553. The reversal of 12304545545 is 54554540321.
It can be written as a sum of positive squares in 16 ways, for example, as 881852416 + 11422693129 = 29696^2 + 106877^2 .
It is a cyclic number.
It is not a de Polignac number, because 12304545545 - 28 = 12304545289 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12304545499 and 12304545508.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4825931 + ... + 4828479.
It is an arithmetic number, because the mean of its divisors is an integer number (480745125).
Almost surely, 212304545545 is an apocalyptic number.
It is an amenable number.
12304545545 is a deficient number, since it is larger than the sum of its proper divisors (3079298455).
12304545545 is a wasteful number, since it uses less digits than its factorization.
12304545545 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2957.
The product of its (nonzero) digits is 240000, while the sum is 38.
The spelling of 12304545545 in words is "twelve billion, three hundred four million, five hundred forty-five thousand, five hundred forty-five".
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