Base | Representation |
---|---|
bin | 101100010011… |
… | …1011100010100 |
3 | 1121201012212211 |
4 | 1120213130110 |
5 | 21421331403 |
6 | 2145523204 |
7 | 401311420 |
oct | 130473424 |
9 | 47635784 |
10 | 23230228 |
11 | 1212723a |
12 | 7943504 |
13 | 4a747c8 |
14 | 3129b80 |
15 | 208d06d |
hex | 1627714 |
23230228 has 48 divisors (see below), whose sum is σ = 50561280. Its totient is φ = 9110016.
The previous prime is 23230219. The next prime is 23230237. The reversal of 23230228 is 82203232.
It is an interprime number because it is at equal distance from previous prime (23230219) and next prime (23230237).
It is a junction number, because it is equal to n+sod(n) for n = 23230199 and 23230208.
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, 16953 + ... + 18271.
It is an arithmetic number, because the mean of its divisors is an integer number (1053360).
Almost surely, 223230228 is an apocalyptic number.
23230228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23230228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25280640).
23230228 is an abundant number, since it is smaller than the sum of its proper divisors (27331052).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23230228 is a wasteful number, since it uses less digits than its factorization.
23230228 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1384 (or 1382 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 22.
The square root of 23230228 is about 4819.7746835303. The cubic root of 23230228 is about 285.3324447280.
The spelling of 23230228 in words is "twenty-three million, two hundred thirty thousand, two hundred twenty-eight".
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