Base | Representation |
---|---|
bin | 1101100111111… |
… | …1000010011110 |
3 | 10222112012002020 |
4 | 3121333002132 |
5 | 104112042304 |
6 | 5400441010 |
7 | 1262465664 |
oct | 331770236 |
9 | 128465066 |
10 | 57143454 |
11 | 2a28a7a5 |
12 | 17179166 |
13 | bab99c4 |
14 | 7836c34 |
15 | 503b5d9 |
hex | 367f09e |
57143454 has 16 divisors (see below), whose sum is σ = 119256192. Its totient is φ = 18219608.
The previous prime is 57143453. The next prime is 57143459. The reversal of 57143454 is 45434175.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (57143453) 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, 206904 + ... + 207179.
It is an arithmetic number, because the mean of its divisors is an integer number (7453512).
Almost surely, 257143454 is an apocalyptic number.
57143454 is an abundant number, since it is smaller than the sum of its proper divisors (62112738).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57143454 is a wasteful number, since it uses less digits than its factorization.
57143454 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 414111.
The product of its digits is 33600, while the sum is 33.
The square root of 57143454 is about 7559.3289384707. The cubic root of 57143454 is about 385.1726981444.
The spelling of 57143454 in words is "fifty-seven million, one hundred forty-three thousand, four hundred fifty-four".
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