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57114021 = 329656483
BaseRepresentation
bin1101100111011…
…1110110100101
310222110200201010
43121313312211
5104110122041
65400052433
71262314116
oct331676645
9128420633
1057114021
112a26a678
1217164119
13baa94a3
14782a20d
155032a16
hex3677da5

57114021 has 8 divisors (see below), whose sum is σ = 78778080. Its totient is φ = 36762992.

The previous prime is 57114011. The next prime is 57114041. The reversal of 57114021 is 12041175.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 57114021 - 25 = 57113989 is a prime.

It is a super-2 number, since 2×571140212 = 6524022789576882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57114011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328155 + ... + 328328.

It is an arithmetic number, because the mean of its divisors is an integer number (9847260).

Almost surely, 257114021 is an apocalyptic number.

It is an amenable number.

57114021 is a deficient number, since it is larger than the sum of its proper divisors (21664059).

57114021 is a wasteful number, since it uses less digits than its factorization.

57114021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656515.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 57114021 is about 7557.3818879292. The cubic root of 57114021 is about 385.1065562144.

Adding to 57114021 its reverse (12041175), we get a palindrome (69155196).

The spelling of 57114021 in words is "fifty-seven million, one hundred fourteen thousand, twenty-one".

Divisors: 1 3 29 87 656483 1969449 19038007 57114021