Base | Representation |
---|---|
bin | 11011100101010… |
… | …00000011010001 |
3 | 121010101001220120 |
4 | 31302220003101 |
5 | 433213000212 |
6 | 34543100453 |
7 | 5506440564 |
oct | 1562500321 |
9 | 533331816 |
10 | 231375057 |
11 | 109672561 |
12 | 655a1729 |
13 | 38c21124 |
14 | 22a2c4db |
15 | 154a588c |
hex | dca80d1 |
231375057 has 8 divisors (see below), whose sum is σ = 308822976. Its totient is φ = 154088592.
The previous prime is 231375037. The next prime is 231375113. The reversal of 231375057 is 750573132.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 231375057 - 27 = 231374929 is a prime.
It is not an unprimeable number, because it can be changed into a prime (231375007) 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, 36978 + ... + 42779.
It is an arithmetic number, because the mean of its divisors is an integer number (38602872).
Almost surely, 2231375057 is an apocalyptic number.
It is an amenable number.
231375057 is a deficient number, since it is larger than the sum of its proper divisors (77447919).
231375057 is an equidigital number, since it uses as much as digits as its factorization.
231375057 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 80727.
The product of its (nonzero) digits is 22050, while the sum is 33.
The square root of 231375057 is about 15211.0176188183. The cubic root of 231375057 is about 613.9111382751.
The spelling of 231375057 in words is "two hundred thirty-one million, three hundred seventy-five thousand, fifty-seven".
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