Base | Representation |
---|---|
bin | 110001001011… |
… | …111101000111 |
3 | 220021002021102 |
4 | 301023331013 |
5 | 11300102043 |
6 | 1140210315 |
7 | 214411622 |
oct | 61137507 |
9 | 26232242 |
10 | 12894023 |
11 | 730751a |
12 | 439999b |
13 | 2895bcc |
14 | 19d8db9 |
15 | 11ea6b8 |
hex | c4bf47 |
12894023 has 4 divisors (see below), whose sum is σ = 13193928. Its totient is φ = 12594120.
The previous prime is 12894017. The next prime is 12894043. The reversal of 12894023 is 32049821.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32049821 = 1511 ⋅21211.
It is a cyclic number.
It is not a de Polignac number, because 12894023 - 28 = 12893767 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12894043) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149888 + ... + 149973.
It is an arithmetic number, because the mean of its divisors is an integer number (3298482).
Almost surely, 212894023 is an apocalyptic number.
12894023 is a deficient number, since it is larger than the sum of its proper divisors (299905).
12894023 is an equidigital number, since it uses as much as digits as its factorization.
12894023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 299904.
The product of its (nonzero) digits is 3456, while the sum is 29.
The square root of 12894023 is about 3590.8248356053. The cubic root of 12894023 is about 234.4927825894.
The spelling of 12894023 in words is "twelve million, eight hundred ninety-four thousand, twenty-three".
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