Base | Representation |
---|---|
bin | 101100001100… |
… | …0010000011101 |
3 | 1121121001120011 |
4 | 1120120100131 |
5 | 21412334104 |
6 | 2144323221 |
7 | 400632163 |
oct | 130302035 |
9 | 47531504 |
10 | 23168029 |
11 | 12094535 |
12 | 7913511 |
13 | 4a523c1 |
14 | 3111233 |
15 | 2079904 |
hex | 161841d |
23168029 has 4 divisors (see below), whose sum is σ = 23188284. Its totient is φ = 23147776.
The previous prime is 23168027. The next prime is 23168069. The reversal of 23168029 is 92086132.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 2647129 + 20520900 = 1627^2 + 4530^2 .
It is a cyclic number.
It is not a de Polignac number, because 23168029 - 21 = 23168027 is a prime.
It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23168021) 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, 8302 + ... + 10735.
It is an arithmetic number, because the mean of its divisors is an integer number (5797071).
Almost surely, 223168029 is an apocalyptic number.
It is an amenable number.
23168029 is a deficient number, since it is larger than the sum of its proper divisors (20255).
23168029 is a wasteful number, since it uses less digits than its factorization.
23168029 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20254.
The product of its (nonzero) digits is 5184, while the sum is 31.
The square root of 23168029 is about 4813.3178785532. The cubic root of 23168029 is about 285.0775576343.
The spelling of 23168029 in words is "twenty-three million, one hundred sixty-eight thousand, twenty-nine".
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