Base | Representation |
---|---|
bin | 111101000010… |
… | …0100011100111 |
3 | 2020012210001202 |
4 | 1322010203213 |
5 | 31143001411 |
6 | 3101513115 |
7 | 535666064 |
oct | 172044347 |
9 | 66183052 |
10 | 32000231 |
11 | 1707727a |
12 | a87279b |
13 | 6825563 |
14 | 436dc6b |
15 | 2c2183b |
hex | 1e848e7 |
32000231 has 4 divisors (see below), whose sum is σ = 32140200. Its totient is φ = 31860264.
The previous prime is 32000219. The next prime is 32000233. The reversal of 32000231 is 13200023.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13200023 = 881 ⋅14983.
It is a cyclic number.
It is not a de Polignac number, because 32000231 - 26 = 32000167 is a prime.
It is a super-2 number, since 2×320002312 = 2048029568106722, which contains 22 as substring.
It is a Duffinian number.
32000231 is a modest number, since divided by 231 gives 32 as remainder.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (32000233) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69641 + ... + 70098.
It is an arithmetic number, because the mean of its divisors is an integer number (8035050).
Almost surely, 232000231 is an apocalyptic number.
32000231 is a deficient number, since it is larger than the sum of its proper divisors (139969).
32000231 is a wasteful number, since it uses less digits than its factorization.
32000231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 139968.
The product of its (nonzero) digits is 36, while the sum is 11.
The square root of 32000231 is about 5656.8746671638. The cubic root of 32000231 is about 317.4809743286.
Adding to 32000231 its reverse (13200023), we get a palindrome (45200254).
The spelling of 32000231 in words is "thirty-two million, two hundred thirty-one", and thus it is an aban number.
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