Base | Representation |
---|---|
bin | 110101110001101111… |
… | …100001010100001111 |
3 | 12112001012101002022101 |
4 | 311301233201110033 |
5 | 1421224132414422 |
6 | 42305433455531 |
7 | 4112631122200 |
oct | 656157412417 |
9 | 175035332271 |
10 | 57742857487 |
11 | 22541379527 |
12 | b235b715a7 |
13 | 55a2c3c3c3 |
14 | 2b1abbd5a7 |
15 | 177e4e9c27 |
hex | d71be150f |
57742857487 has 12 divisors (see below), whose sum is σ = 67507813200. Its totient is φ = 49245156576.
The previous prime is 57742857467. The next prime is 57742857521. The reversal of 57742857487 is 78475824775.
It is not a de Polignac number, because 57742857487 - 219 = 57742333199 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 (57742857427) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2951118 + ... + 2970619.
It is an arithmetic number, because the mean of its divisors is an integer number (5625651100).
Almost surely, 257742857487 is an apocalyptic number.
57742857487 is a deficient number, since it is larger than the sum of its proper divisors (9764955713).
57742857487 is a wasteful number, since it uses less digits than its factorization.
57742857487 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5921950 (or 5921943 counting only the distinct ones).
The product of its digits is 122931200, while the sum is 64.
The spelling of 57742857487 in words is "fifty-seven billion, seven hundred forty-two million, eight hundred fifty-seven thousand, four hundred eighty-seven".
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