Base | Representation |
---|---|
bin | 1101101110010… |
… | …0110100111101 |
3 | 11000022100222222 |
4 | 3123210310331 |
5 | 104213413011 |
6 | 5413415125 |
7 | 1266153344 |
oct | 333446475 |
9 | 130270888 |
10 | 57560381 |
11 | 2a544a6a |
12 | 1733a4a5 |
13 | bc046c8 |
14 | 7904b5b |
15 | 50beddb |
hex | 36e4d3d |
57560381 has 2 divisors, whose sum is σ = 57560382. Its totient is φ = 57560380.
The previous prime is 57560369. The next prime is 57560401. The reversal of 57560381 is 18306575.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 50537881 + 7022500 = 7109^2 + 2650^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-57560381 is a prime.
It is a super-2 number, since 2×575603812 = 6626394921730322, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (57560081) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28780190 + 28780191.
It is an arithmetic number, because the mean of its divisors is an integer number (28780191).
Almost surely, 257560381 is an apocalyptic number.
It is an amenable number.
57560381 is a deficient number, since it is larger than the sum of its proper divisors (1).
57560381 is an equidigital number, since it uses as much as digits as its factorization.
57560381 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 25200, while the sum is 35.
The square root of 57560381 is about 7586.8558046137. The cubic root of 57560381 is about 386.1071878758.
The spelling of 57560381 in words is "fifty-seven million, five hundred sixty thousand, three hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.000 sec. • engine limits •