Base | Representation |
---|---|
bin | 101100011110… |
… | …1001001111001 |
3 | 1121212201212122 |
4 | 1120331021321 |
5 | 21432203121 |
6 | 2151451025 |
7 | 402131615 |
oct | 130751171 |
9 | 47781778 |
10 | 23319161 |
11 | 12188038 |
12 | 7986a75 |
13 | 4aa6128 |
14 | 3150345 |
15 | 20a95ab |
hex | 163d279 |
23319161 has 8 divisors (see below), whose sum is σ = 24902400. Its totient is φ = 21787920.
The previous prime is 23319151. The next prime is 23319187. The reversal of 23319161 is 16191332.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-23319161 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 23319161.
It is not an unprimeable number, because it can be changed into a prime (23319151) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12071 + ... + 13868.
It is an arithmetic number, because the mean of its divisors is an integer number (3112800).
Almost surely, 223319161 is an apocalyptic number.
It is an amenable number.
23319161 is a deficient number, since it is larger than the sum of its proper divisors (1583239).
23319161 is a wasteful number, since it uses less digits than its factorization.
23319161 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25999.
The product of its digits is 972, while the sum is 26.
The square root of 23319161 is about 4828.9917167044. The cubic root of 23319161 is about 285.6960967349.
The spelling of 23319161 in words is "twenty-three million, three hundred nineteen thousand, one hundred sixty-one".
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