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57541161 = 3831791291
BaseRepresentation
bin1101101110000…
…0001000101001
311000021101122010
43123200020221
5104212304121
65413150133
71266043326
oct333401051
9130241563
1057541161
112a531587
121732b349
13bbc8a32
1478dbb4d
1550b9376
hex36e0229

57541161 has 16 divisors (see below), whose sum is σ = 78140160. Its totient is φ = 37657680.

The previous prime is 57541157. The next prime is 57541171. The reversal of 57541161 is 16114575.

It is not a de Polignac number, because 57541161 - 22 = 57541157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57541171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43926 + ... + 45216.

It is an arithmetic number, because the mean of its divisors is an integer number (4883760).

Almost surely, 257541161 is an apocalyptic number.

It is an amenable number.

57541161 is a deficient number, since it is larger than the sum of its proper divisors (20598999).

57541161 is a wasteful number, since it uses less digits than its factorization.

57541161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556.

The product of its digits is 4200, while the sum is 30.

The square root of 57541161 is about 7585.5890344785. The cubic root of 57541161 is about 386.0642080451.

The spelling of 57541161 in words is "fifty-seven million, five hundred forty-one thousand, one hundred sixty-one".

Divisors: 1 3 83 179 249 537 1291 3873 14857 44571 107153 231089 321459 693267 19180387 57541161