Base | Representation |
---|---|
bin | 101101011101… |
… | …0001001011000 |
3 | 1122211202011101 |
4 | 1122322021120 |
5 | 22100044003 |
6 | 2210441144 |
7 | 406363336 |
oct | 132721130 |
9 | 48752141 |
10 | 23831128 |
11 | 124a7752 |
12 | 7b931b4 |
13 | 4c25179 |
14 | 3244b56 |
15 | 215b11d |
hex | 16ba258 |
23831128 has 16 divisors (see below), whose sum is σ = 46626480. Its totient is φ = 11397408.
The previous prime is 23831113. The next prime is 23831131. The reversal of 23831128 is 82113832.
It is a junction number, because it is equal to n+sod(n) for n = 23831096 and 23831105.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64575 + ... + 64942.
It is an arithmetic number, because the mean of its divisors is an integer number (2914155).
Almost surely, 223831128 is an apocalyptic number.
It is an amenable number.
23831128 is a deficient number, since it is larger than the sum of its proper divisors (22795352).
23831128 is a wasteful number, since it uses less digits than its factorization.
23831128 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 129546 (or 129542 counting only the distinct ones).
The product of its digits is 2304, while the sum is 28.
The square root of 23831128 is about 4881.7136335512. The cubic root of 23831128 is about 287.7717777863.
The spelling of 23831128 in words is "twenty-three million, eight hundred thirty-one thousand, one hundred twenty-eight".
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