Base | Representation |
---|---|
bin | 101100001000… |
… | …0111100001010 |
3 | 1121112112110010 |
4 | 1120100330022 |
5 | 21410404213 |
6 | 2143532350 |
7 | 400445616 |
oct | 130207412 |
9 | 47475403 |
10 | 23138058 |
11 | 12073a69 |
12 | 78ba0b6 |
13 | 4a41878 |
14 | 3104346 |
15 | 2070ac3 |
hex | 1610f0a |
23138058 has 16 divisors (see below), whose sum is σ = 46545696. Its totient is φ = 7667760.
The previous prime is 23138057. The next prime is 23138081. The reversal of 23138058 is 85083132.
It is a happy number.
It is a super-3 number, since 3×231380583 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.
It is not an unprimeable number, because it can be changed into a prime (23138057) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10108 + ... + 12183.
It is an arithmetic number, because the mean of its divisors is an integer number (2909106).
Almost surely, 223138058 is an apocalyptic number.
23138058 is an abundant number, since it is smaller than the sum of its proper divisors (23407638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23138058 is a wasteful number, since it uses less digits than its factorization.
23138058 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22469.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 23138058 is about 4810.2035299975. The cubic root of 23138058 is about 284.9545757091.
The spelling of 23138058 in words is "twenty-three million, one hundred thirty-eight thousand, fifty-eight".
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