Base | Representation |
---|---|
bin | 101011111000… |
… | …0000001000101 |
3 | 1121021200110120 |
4 | 1113300001011 |
5 | 21342100310 |
6 | 2141012153 |
7 | 366344511 |
oct | 127600105 |
9 | 47250416 |
10 | 23003205 |
11 | 11a91715 |
12 | 7854059 |
13 | 49c5384 |
14 | 30ab141 |
15 | 2045b70 |
hex | 15f0045 |
23003205 has 16 divisors (see below), whose sum is σ = 38742720. Its totient is φ = 11622528.
The previous prime is 23003191. The next prime is 23003221. The reversal of 23003205 is 50230032.
It is not a de Polignac number, because 23003205 - 28 = 23002949 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (15).
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, 40072 + ... + 40641.
It is an arithmetic number, because the mean of its divisors is an integer number (2421420).
Almost surely, 223003205 is an apocalyptic number.
It is an amenable number.
23003205 is a deficient number, since it is larger than the sum of its proper divisors (15739515).
23003205 is a wasteful number, since it uses less digits than its factorization.
23003205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80740.
The product of its (nonzero) digits is 180, while the sum is 15.
The square root of 23003205 is about 4796.1656560215. The cubic root of 23003205 is about 284.3999069277.
Adding to 23003205 its reverse (50230032), we get a palindrome (73233237).
The spelling of 23003205 in words is "twenty-three million, three thousand, two hundred five".
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