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57061769 = 193003251
BaseRepresentation
bin1101100110101…
…1000110001001
310222101001000212
43121223012021
5104101434034
65355010505
71262005562
oct331530611
9128331025
1057061769
112a234396
1217139a35
13ba8b77b
147815169
1550222ce
hex366b189

57061769 has 4 divisors (see below), whose sum is σ = 60065040. Its totient is φ = 54058500.

The previous prime is 57061759. The next prime is 57061789. The reversal of 57061769 is 96716075.

57061769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 57061769 - 28 = 57061513 is a prime.

It is a super-2 number, since 2×570617692 = 6512090962818722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57061759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1501607 + ... + 1501644.

It is an arithmetic number, because the mean of its divisors is an integer number (15016260).

Almost surely, 257061769 is an apocalyptic number.

It is an amenable number.

57061769 is a deficient number, since it is larger than the sum of its proper divisors (3003271).

57061769 is a wasteful number, since it uses less digits than its factorization.

57061769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003270.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 57061769 is about 7553.9240795761. The cubic root of 57061769 is about 384.9890793552.

The spelling of 57061769 in words is "fifty-seven million, sixty-one thousand, seven hundred sixty-nine".

Divisors: 1 19 3003251 57061769