Base | Representation |
---|---|
bin | 101101011101… |
… | …0000101100001 |
3 | 1122211201211020 |
4 | 1122322011201 |
5 | 22100042011 |
6 | 2210440053 |
7 | 406362534 |
oct | 132720541 |
9 | 48751736 |
10 | 23830881 |
11 | 124a7548 |
12 | 7b93029 |
13 | 4c25019 |
14 | 3244a1b |
15 | 215b006 |
hex | 16ba161 |
23830881 has 16 divisors (see below), whose sum is σ = 32706240. Its totient is φ = 15425280.
The previous prime is 23830861. The next prime is 23830897. The reversal of 23830881 is 18803832.
It is a de Polignac number, because none of the positive numbers 2k-23830881 is a prime.
It is a super-2 number, since 2×238308812 = 1135821778472322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (23830811) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38190 + ... + 38808.
It is an arithmetic number, because the mean of its divisors is an integer number (2044140).
Almost surely, 223830881 is an apocalyptic number.
It is an amenable number.
23830881 is a deficient number, since it is larger than the sum of its proper divisors (8875359).
23830881 is a wasteful number, since it uses less digits than its factorization.
23830881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 976.
The product of its (nonzero) digits is 9216, while the sum is 33.
The square root of 23830881 is about 4881.6883349923. The cubic root of 23830881 is about 287.7707835702.
The spelling of 23830881 in words is "twenty-three million, eight hundred thirty thousand, eight hundred eighty-one".
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