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57104219 = 291969111
BaseRepresentation
bin1101100111010…
…1011101011011
310222110012021002
43121311131123
5104104313334
65355535215
71262243414
oct331653533
9128405232
1057104219
112a263277
121715a50b
13baa4ba3
14782680b
15502eb7e
hex367575b

57104219 has 4 divisors (see below), whose sum is σ = 59073360. Its totient is φ = 55135080.

The previous prime is 57104183. The next prime is 57104221. The reversal of 57104219 is 91240175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57104219 - 212 = 57100123 is a prime.

It is a super-2 number, since 2×571042192 = 6521783655199922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 1969111 = 57104219 / (5 + 7 + 1 + 0 + 4 + 2 + 1 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57104191 and 57104200.

It is not an unprimeable number, because it can be changed into a prime (57103219) 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 3 ways as a sum of consecutive naturals, for example, 984527 + ... + 984584.

It is an arithmetic number, because the mean of its divisors is an integer number (14768340).

Almost surely, 257104219 is an apocalyptic number.

57104219 is a deficient number, since it is larger than the sum of its proper divisors (1969141).

57104219 is a wasteful number, since it uses less digits than its factorization.

57104219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969140.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 57104219 is about 7556.7333550946. The cubic root of 57104219 is about 385.0845240855.

The spelling of 57104219 in words is "fifty-seven million, one hundred four thousand, two hundred nineteen".

Divisors: 1 29 1969111 57104219