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57117454 = 231639029
BaseRepresentation
bin1101100111100…
…0101100001110
310222110212102021
43121320230032
5104110224304
65400120354
71262330122
oct331705416
9128425367
1057117454
112a272209
12171660ba
13baaac14
14782b582
155033a54
hex3678b0e

57117454 has 8 divisors (see below), whose sum is σ = 85712760. Its totient is φ = 28546536.

The previous prime is 57117451. The next prime is 57117481. The reversal of 57117454 is 45471175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57117451) 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, 1812 + ... + 10840.

It is an arithmetic number, because the mean of its divisors is an integer number (10714095).

Almost surely, 257117454 is an apocalyptic number.

57117454 is a deficient number, since it is larger than the sum of its proper divisors (28595306).

57117454 is a wasteful number, since it uses less digits than its factorization.

57117454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12194.

The product of its digits is 19600, while the sum is 34.

The square root of 57117454 is about 7557.6090134380. The cubic root of 57117454 is about 385.1142720333.

The spelling of 57117454 in words is "fifty-seven million, one hundred seventeen thousand, four hundred fifty-four".

Divisors: 1 2 3163 6326 9029 18058 28558727 57117454