Base | Representation |
---|---|
bin | 110101001110010100… |
… | …010111110110101111 |
3 | 12110111210001112122011 |
4 | 311032110113312233 |
5 | 1414020011211122 |
6 | 42130443302051 |
7 | 4062123363151 |
oct | 651624276657 |
9 | 173453045564 |
10 | 57148538287 |
11 | 22266950735 |
12 | b0aab1a927 |
13 | 5509a82439 |
14 | 2aa1cb4ad1 |
15 | 1747250377 |
hex | d4e517daf |
57148538287 has 4 divisors (see below), whose sum is σ = 58117157640. Its totient is φ = 56179918936.
The previous prime is 57148538203. The next prime is 57148538303. The reversal of 57148538287 is 78283584175.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 57148538287 - 235 = 22788799919 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57148535287) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484309588 + ... + 484309705.
It is an arithmetic number, because the mean of its divisors is an integer number (14529289410).
Almost surely, 257148538287 is an apocalyptic number.
57148538287 is a deficient number, since it is larger than the sum of its proper divisors (968619353).
57148538287 is an equidigital number, since it uses as much as digits as its factorization.
57148538287 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 968619352.
The product of its digits is 15052800, while the sum is 58.
The spelling of 57148538287 in words is "fifty-seven billion, one hundred forty-eight million, five hundred thirty-eight thousand, two hundred eighty-seven".
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