Base | Representation |
---|---|
bin | 10111010111100111… |
… | …10001111010100001 |
3 | 1012101100210122222202 |
4 | 23223303301322201 |
5 | 201143303413040 |
6 | 5432535342545 |
7 | 622622356610 |
oct | 135363617241 |
9 | 35340718882 |
10 | 12546154145 |
11 | 5358a82338 |
12 | 2521821a55 |
13 | 124c359665 |
14 | 870389877 |
15 | 4d66a4015 |
hex | 2ebcf1ea1 |
12546154145 has 32 divisors (see below), whose sum is σ = 17818859520. Its totient is φ = 8297372160.
The previous prime is 12546154133. The next prime is 12546154147. The reversal of 12546154145 is 54145164521.
It is not a de Polignac number, because 12546154145 - 24 = 12546154129 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 12546154099 and 12546154108.
It is not an unprimeable number, because it can be changed into a prime (12546154147) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 999629 + ... + 1012101.
It is an arithmetic number, because the mean of its divisors is an integer number (556839360).
Almost surely, 212546154145 is an apocalyptic number.
It is an amenable number.
12546154145 is a deficient number, since it is larger than the sum of its proper divisors (5272705375).
12546154145 is a wasteful number, since it uses less digits than its factorization.
12546154145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13505.
The product of its digits is 96000, while the sum is 38.
The spelling of 12546154145 in words is "twelve billion, five hundred forty-six million, one hundred fifty-four thousand, one hundred forty-five".
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