Base | Representation |
---|---|
bin | 101100001111… |
… | …0011001111111 |
3 | 1121122100002222 |
4 | 1120132121333 |
5 | 21414140330 |
6 | 2145035555 |
7 | 401065463 |
oct | 130363177 |
9 | 47570088 |
10 | 23193215 |
11 | 12101451 |
12 | 7925bbb |
13 | 4a609c6 |
14 | 311a4a3 |
15 | 20820e5 |
hex | 161e67f |
23193215 has 16 divisors (see below), whose sum is σ = 28615680. Its totient is φ = 18039840.
The previous prime is 23193199. The next prime is 23193227. The reversal of 23193215 is 51239132.
It is not a de Polignac number, because 23193215 - 24 = 23193199 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27632 + ... + 28458.
It is an arithmetic number, because the mean of its divisors is an integer number (1788480).
Almost surely, 223193215 is an apocalyptic number.
23193215 is a deficient number, since it is larger than the sum of its proper divisors (5422465).
23193215 is an equidigital number, since it uses as much as digits as its factorization.
23193215 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 982.
The product of its digits is 1620, while the sum is 26.
The square root of 23193215 is about 4815.9334505369. The cubic root of 23193215 is about 285.1808229740.
The spelling of 23193215 in words is "twenty-three million, one hundred ninety-three thousand, two hundred fifteen".
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