Base | Representation |
---|---|
bin | 1101101001110… |
… | …1111100001111 |
3 | 10222202121201021 |
4 | 3122131330033 |
5 | 104130120111 |
6 | 5403255011 |
7 | 1263534010 |
oct | 332357417 |
9 | 128677637 |
10 | 57270031 |
11 | 2a366905 |
12 | 1721a467 |
13 | bb324c0 |
14 | 786b007 |
15 | 5063d71 |
hex | 369df0f |
57270031 has 8 divisors (see below), whose sum is σ = 70486304. Its totient is φ = 45312480.
The previous prime is 57270019. The next prime is 57270077. The reversal of 57270031 is 13007275.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 57270031 - 27 = 57269903 is a prime.
It is a super-2 number, since 2×572700312 = 6559712901481922, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 57269978 and 57270005.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57270001) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314580 + ... + 314761.
It is an arithmetic number, because the mean of its divisors is an integer number (8810788).
Almost surely, 257270031 is an apocalyptic number.
57270031 is a deficient number, since it is larger than the sum of its proper divisors (13216273).
57270031 is a wasteful number, since it uses less digits than its factorization.
57270031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 629361.
The product of its (nonzero) digits is 1470, while the sum is 25.
The square root of 57270031 is about 7567.6965451847. The cubic root of 57270031 is about 385.4568838066.
The spelling of 57270031 in words is "fifty-seven million, two hundred seventy thousand, thirty-one".
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