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57016369 = 62479127
BaseRepresentation
bin1101100110000…
…0000000110001
310222021201202101
43121200000301
5104044010434
65354020401
71261426324
oct331400061
9128251671
1057016369
112a203273
1217117701
13ba73bc7
1478027bb
155013b14
hex3660031

57016369 has 4 divisors (see below), whose sum is σ = 57031744. Its totient is φ = 57000996.

The previous prime is 57016367. The next prime is 57016391. The reversal of 57016369 is 96361075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 57016369 - 21 = 57016367 is a prime.

It is a super-2 number, since 2×570163692 = 6501732667888322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57016367) 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, 1684 + ... + 10810.

It is an arithmetic number, because the mean of its divisors is an integer number (14257936).

Almost surely, 257016369 is an apocalyptic number.

It is an amenable number.

57016369 is a deficient number, since it is larger than the sum of its proper divisors (15375).

57016369 is an equidigital number, since it uses as much as digits as its factorization.

57016369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15374.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 57016369 is about 7550.9184209605. The cubic root of 57016369 is about 384.8869494351.

The spelling of 57016369 in words is "fifty-seven million, sixteen thousand, three hundred sixty-nine".

Divisors: 1 6247 9127 57016369