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57445673 = 892812297
BaseRepresentation
bin1101101100100…
…0110100101001
311000002112122112
43123020310221
5104201230143
65411132105
71265165045
oct333106451
9130075575
1057445673
112a47686a
12172a4035
13bb9442c
1478b5025
15509ae18
hex36c8d29

57445673 has 8 divisors (see below), whose sum is σ = 58323240. Its totient is φ = 56573440.

The previous prime is 57445657. The next prime is 57445681. The reversal of 57445673 is 37654475.

57445673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5071504 + 52374169 = 2252^2 + 7237^2 .

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 57445673 - 24 = 57445657 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57445673.

It is not an unprimeable number, because it can be changed into a prime (57445613) 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 7 ways as a sum of consecutive naturals, for example, 23861 + ... + 26157.

It is an arithmetic number, because the mean of its divisors is an integer number (7290405).

Almost surely, 257445673 is an apocalyptic number.

It is an amenable number.

57445673 is a deficient number, since it is larger than the sum of its proper divisors (877567).

57445673 is a wasteful number, since it uses less digits than its factorization.

57445673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667.

The product of its digits is 352800, while the sum is 41.

The square root of 57445673 is about 7579.2923812187. The cubic root of 57445673 is about 385.8505354372.

The spelling of 57445673 in words is "fifty-seven million, four hundred forty-five thousand, six hundred seventy-three".

Divisors: 1 89 281 2297 25009 204433 645457 57445673