Base | Representation |
---|---|
bin | 110101010110001100… |
… | …100101100100010111 |
3 | 12110211222202211001010 |
4 | 311112030211210113 |
5 | 1414302330340111 |
6 | 42151524303303 |
7 | 4065320021121 |
oct | 652614454427 |
9 | 173758684033 |
10 | 57280715031 |
11 | 2232451a011 |
12 | b127241b33 |
13 | 552b280927 |
14 | 2ab5680211 |
15 | 1753b5daa6 |
hex | d56325917 |
57280715031 has 16 divisors (see below), whose sum is σ = 78854353920. Its totient is φ = 36947621760.
The previous prime is 57280715029. The next prime is 57280715071. The reversal of 57280715031 is 13051708275.
57280715031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 57280715031 - 21 = 57280715029 is a prime.
It is a super-2 number, since 2×572807150312 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57280715071) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404356 + ... + 527318.
It is an arithmetic number, because the mean of its divisors is an integer number (4928397120).
Almost surely, 257280715031 is an apocalyptic number.
57280715031 is a deficient number, since it is larger than the sum of its proper divisors (21573638889).
57280715031 is a wasteful number, since it uses less digits than its factorization.
57280715031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 128006.
The product of its (nonzero) digits is 58800, while the sum is 39.
The spelling of 57280715031 in words is "fifty-seven billion, two hundred eighty million, seven hundred fifteen thousand, thirty-one".
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