Base | Representation |
---|---|
bin | 11011100101000… |
… | …10111010101001 |
3 | 121010100000001121 |
4 | 31302202322221 |
5 | 433211312100 |
6 | 34542415241 |
7 | 5506322350 |
oct | 1562427251 |
9 | 533300047 |
10 | 231354025 |
11 | 109658781 |
12 | 65591521 |
13 | 38c14696 |
14 | 22a24997 |
15 | 1549e51a |
hex | dca2ea9 |
231354025 has 24 divisors (see below), whose sum is σ = 339174720. Its totient is φ = 153168960.
The previous prime is 231353977. The next prime is 231354031. The reversal of 231354025 is 520453132.
It is not a de Polignac number, because 231354025 - 27 = 231353897 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (25).
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17719 + ... + 27868.
It is an arithmetic number, because the mean of its divisors is an integer number (14132280).
Almost surely, 2231354025 is an apocalyptic number.
231354025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
231354025 is a deficient number, since it is larger than the sum of its proper divisors (107820695).
231354025 is a wasteful number, since it uses less digits than its factorization.
231354025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45633 (or 45628 counting only the distinct ones).
The product of its (nonzero) digits is 3600, while the sum is 25.
The square root of 231354025 is about 15210.3262621155. The cubic root of 231354025 is about 613.8925361975.
The spelling of 231354025 in words is "two hundred thirty-one million, three hundred fifty-four thousand, twenty-five".
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