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57327197 = 197397733
BaseRepresentation
bin1101101010101…
…1111001011101
310222212112010112
43122223321131
5104133432242
65404415405
71264162454
oct332537135
9128775115
1057327197
112a3a5854
1217247565
13bb52525
147883b9b
155075c82
hex36abe5d

57327197 has 8 divisors (see below), whose sum is σ = 57842136. Its totient is φ = 56814912.

The previous prime is 57327181. The next prime is 57327203. The reversal of 57327197 is 79172375.

It can be written as a sum of positive squares in 4 ways, for example, as 46430596 + 10896601 = 6814^2 + 3301^2 .

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 57327197 - 24 = 57327181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57327167) 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, 77843 + ... + 78575.

It is an arithmetic number, because the mean of its divisors is an integer number (7230267).

Almost surely, 257327197 is an apocalyptic number.

It is an amenable number.

57327197 is a deficient number, since it is larger than the sum of its proper divisors (514939).

57327197 is a wasteful number, since it uses less digits than its factorization.

57327197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327.

The product of its digits is 92610, while the sum is 41.

The square root of 57327197 is about 7571.4725780392. The cubic root of 57327197 is about 385.5850933909.

The spelling of 57327197 in words is "fifty-seven million, three hundred twenty-seven thousand, one hundred ninety-seven".

Divisors: 1 197 397 733 78209 144401 291001 57327197