Base | Representation |
---|---|
bin | 101100001001… |
… | …0100101111100 |
3 | 1121112212201212 |
4 | 1120102211330 |
5 | 21411113303 |
6 | 2144023552 |
7 | 400504430 |
oct | 130224574 |
9 | 47485655 |
10 | 23144828 |
11 | 12079063 |
12 | 7901bb8 |
13 | 4a44985 |
14 | 31069c0 |
15 | 2072ad8 |
hex | 161297c |
23144828 has 24 divisors (see below), whose sum is σ = 47421024. Its totient is φ = 9676800.
The previous prime is 23144819. The next prime is 23144833. The reversal of 23144828 is 82844132.
It is a junction number, because it is equal to n+sod(n) for n = 23144794 and 23144803.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8933 + ... + 11228.
It is an arithmetic number, because the mean of its divisors is an integer number (1975876).
Almost surely, 223144828 is an apocalyptic number.
23144828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.
It is an amenable number.
23144828 is an abundant number, since it is smaller than the sum of its proper divisors (24276196).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23144828 is a wasteful number, since it uses less digits than its factorization.
23144828 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20213 (or 20211 counting only the distinct ones).
The product of its digits is 12288, while the sum is 32.
The square root of 23144828 is about 4810.9071909568. The cubic root of 23144828 is about 284.9823647649.
The spelling of 23144828 in words is "twenty-three million, one hundred forty-four thousand, eight hundred twenty-eight".
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