Base | Representation |
---|---|
bin | 1101100110100… |
… | …0000000110111 |
3 | 10222100101201020 |
4 | 3121220000313 |
5 | 104101033033 |
6 | 5354432223 |
7 | 1261624014 |
oct | 331500067 |
9 | 128311636 |
10 | 57049143 |
11 | 2a225958 |
12 | 17132673 |
13 | ba85ab8 |
14 | 781070b |
15 | 501d6b3 |
hex | 3668037 |
57049143 has 8 divisors (see below), whose sum is σ = 76819056. Its totient is φ = 37656000.
The previous prime is 57049141. The next prime is 57049193. The reversal of 57049143 is 34194075.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 57049143 - 21 = 57049141 is a prime.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57049141) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93838 + ... + 94443.
It is an arithmetic number, because the mean of its divisors is an integer number (9602382).
Almost surely, 257049143 is an apocalyptic number.
57049143 is a deficient number, since it is larger than the sum of its proper divisors (19769913).
57049143 is a wasteful number, since it uses less digits than its factorization.
57049143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 188385.
The product of its (nonzero) digits is 15120, while the sum is 33.
The square root of 57049143 is about 7553.0883087648. The cubic root of 57049143 is about 384.9606818790.
The spelling of 57049143 in words is "fifty-seven million, forty-nine thousand, one hundred forty-three".
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