Base | Representation |
---|---|
bin | 101111111100… |
… | …011101100111 |
3 | 212122112122011 |
4 | 233330131213 |
5 | 11204142143 |
6 | 1125215051 |
7 | 211554430 |
oct | 57743547 |
9 | 25575564 |
10 | 12568423 |
11 | 710492a |
12 | 4261487 |
13 | 27b094a |
14 | 1952487 |
15 | 1183e9d |
hex | bfc767 |
12568423 has 16 divisors (see below), whose sum is σ = 15704064. Its totient is φ = 9809280.
The previous prime is 12568421. The next prime is 12568433. The reversal of 12568423 is 32486521.
It is a cyclic number.
It is not a de Polignac number, because 12568423 - 21 = 12568421 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (31).
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12568421) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1986 + ... + 5392.
It is an arithmetic number, because the mean of its divisors is an integer number (981504).
Almost surely, 212568423 is an apocalyptic number.
12568423 is a deficient number, since it is larger than the sum of its proper divisors (3135641).
12568423 is a wasteful number, since it uses less digits than its factorization.
12568423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3462.
The product of its digits is 11520, while the sum is 31.
The square root of 12568423 is about 3545.1971736421. The cubic root of 12568423 is about 232.5021266233.
The spelling of 12568423 in words is "twelve million, five hundred sixty-eight thousand, four hundred twenty-three".
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