Base | Representation |
---|---|
bin | 110000110100… |
… | …000011110001 |
3 | 220002010000022 |
4 | 300310003301 |
5 | 11233434040 |
6 | 1134133225 |
7 | 213523355 |
oct | 60640361 |
9 | 26063008 |
10 | 12796145 |
11 | 724aa2a |
12 | 4351215 |
13 | 28604ab |
14 | 19b1465 |
15 | 11cb6b5 |
hex | c340f1 |
12796145 has 4 divisors (see below), whose sum is σ = 15355380. Its totient is φ = 10236912.
The previous prime is 12796123. The next prime is 12796151. The reversal of 12796145 is 54169721.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54169721 = 229 ⋅236549.
It can be written as a sum of positive squares in 2 ways, for example, as 9740641 + 3055504 = 3121^2 + 1748^2 .
It is a cyclic number.
It is not a de Polignac number, because 12796145 - 26 = 12796081 is a prime.
It is a super-2 number, since 2×127961452 = 327482653722050, which contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279610 + ... + 1279619.
It is an arithmetic number, because the mean of its divisors is an integer number (3838845).
Almost surely, 212796145 is an apocalyptic number.
It is an amenable number.
12796145 is a deficient number, since it is larger than the sum of its proper divisors (2559235).
12796145 is an equidigital number, since it uses as much as digits as its factorization.
12796145 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2559234.
The product of its digits is 15120, while the sum is 35.
The square root of 12796145 is about 3577.1699708009. The cubic root of 12796145 is about 233.8979331816.
The spelling of 12796145 in words is "twelve million, seven hundred ninety-six thousand, one hundred forty-five".
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