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57544401 = 3314331429
BaseRepresentation
bin1101101110000…
…0111011010001
311000021120002010
43123200323101
5104212410101
65413213133
71266055635
oct333407321
9130246063
1057544401
112a533a62
12173311a9
13bbca355
1478dcdc5
1550ba2d6
hex36e0ed1

57544401 has 16 divisors (see below), whose sum is σ = 79439360. Its totient is φ = 37013760.

The previous prime is 57544393. The next prime is 57544429. The reversal of 57544401 is 10444575.

It is not a de Polignac number, because 57544401 - 23 = 57544393 is a prime.

It is a super-2 number, since 2×575444012 = 6622716172897602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57544451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39555 + ... + 40983.

It is an arithmetic number, because the mean of its divisors is an integer number (4964960).

Almost surely, 257544401 is an apocalyptic number.

It is an amenable number.

57544401 is a deficient number, since it is larger than the sum of its proper divisors (21894959).

57544401 is a wasteful number, since it uses less digits than its factorization.

57544401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896.

The product of its (nonzero) digits is 11200, while the sum is 30.

The square root of 57544401 is about 7585.8025943205. The cubic root of 57544401 is about 386.0714540150.

Adding to 57544401 its reverse (10444575), we get a palindrome (67988976).

The spelling of 57544401 in words is "fifty-seven million, five hundred forty-four thousand, four hundred one".

Divisors: 1 3 31 93 433 1299 1429 4287 13423 40269 44299 132897 618757 1856271 19181467 57544401