Base | Representation |
---|---|
bin | 101100001111… |
… | …1011000000001 |
3 | 1121122112120000 |
4 | 1120133120001 |
5 | 21414302220 |
6 | 2145110213 |
7 | 401113164 |
oct | 130373001 |
9 | 47575500 |
10 | 23197185 |
11 | 12104430 |
12 | 7928369 |
13 | 4a6275b |
14 | 311badb |
15 | 2083390 |
hex | 161f601 |
23197185 has 80 divisors (see below), whose sum is σ = 46835712. Its totient is φ = 10886400.
The previous prime is 23197183. The next prime is 23197189. The reversal of 23197185 is 58179132.
It is not a de Polignac number, because 23197185 - 21 = 23197183 is a prime.
It is not an unprimeable number, because it can be changed into a prime (23197183) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 182592 + ... + 182718.
Almost surely, 223197185 is an apocalyptic number.
It is an amenable number.
23197185 is an abundant number, since it is smaller than the sum of its proper divisors (23638527).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23197185 is a wasteful number, since it uses less digits than its factorization.
23197185 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 196 (or 187 counting only the distinct ones).
The product of its digits is 15120, while the sum is 36.
The square root of 23197185 is about 4816.3456063700. The cubic root of 23197185 is about 285.1970935841.
The spelling of 23197185 in words is "twenty-three million, one hundred ninety-seven thousand, one hundred eighty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •