Base | Representation |
---|---|
bin | 11011100101110… |
… | …10110101111001 |
3 | 121010111222111020 |
4 | 31302322311321 |
5 | 433222431100 |
6 | 34544453053 |
7 | 5510211150 |
oct | 1562726571 |
9 | 533458436 |
10 | 231452025 |
11 | 109715372 |
12 | 6561a189 |
13 | 38c4a17c |
14 | 22a4c597 |
15 | 154bd5a0 |
hex | dcbad79 |
231452025 has 48 divisors (see below), whose sum is σ = 463077504. Its totient is φ = 99578880.
The previous prime is 231452009. The next prime is 231452071. The reversal of 231452025 is 520254132.
It is not a de Polignac number, because 231452025 - 24 = 231452009 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 231451986 and 231452004.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4042 + ... + 21891.
It is an arithmetic number, because the mean of its divisors is an integer number (9647448).
Almost surely, 2231452025 is an apocalyptic number.
231452025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
231452025 is an abundant number, since it is smaller than the sum of its proper divisors (231625479).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
231452025 is a wasteful number, since it uses less digits than its factorization.
231452025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 25970 (or 25965 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 24.
The square root of 231452025 is about 15213.5474166941. The cubic root of 231452025 is about 613.9792042032.
The spelling of 231452025 in words is "two hundred thirty-one million, four hundred fifty-two thousand, twenty-five".
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