Base | Representation |
---|---|
bin | 110101100000101101… |
… | …100110110010000111 |
3 | 12111022021202021121100 |
4 | 311200231212302013 |
5 | 1420133012033134 |
6 | 42221225551143 |
7 | 4102561441131 |
oct | 654055466207 |
9 | 174267667540 |
10 | 57457142919 |
11 | 22405071990 |
12 | b1763454b3 |
13 | 55589a3927 |
14 | 2ad0c88051 |
15 | 17643ad999 |
hex | d60b66c87 |
57457142919 has 24 divisors (see below), whose sum is σ = 90547277184. Its totient is φ = 34819146000.
The previous prime is 57457142879. The next prime is 57457142921. The reversal of 57457142919 is 91924175475.
57457142919 is a `hidden beast` number, since 57 + 4 + 571 + 4 + 2 + 9 + 19 = 666.
57457142919 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 57457142919 - 27 = 57457142791 is a prime.
It is a super-2 number, since 2×574571429192 (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 (57417142919) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1334214 + ... + 1376604.
It is an arithmetic number, because the mean of its divisors is an integer number (3772803216).
Almost surely, 257457142919 is an apocalyptic number.
57457142919 is a deficient number, since it is larger than the sum of its proper divisors (33090134265).
57457142919 is a wasteful number, since it uses less digits than its factorization.
57457142919 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 56099 (or 56096 counting only the distinct ones).
The product of its digits is 3175200, while the sum is 54.
The spelling of 57457142919 in words is "fifty-seven billion, four hundred fifty-seven million, one hundred forty-two thousand, nine hundred nineteen".
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