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57451047 = 337517577
BaseRepresentation
bin1101101100101…
…0001000100111
311000002211000120
43123022020213
5104201413142
65411213023
71265216523
oct333121047
9130084016
1057451047
112a47a905
12172a7173
13bb96a04
1478b6d83
15509c7ec
hex36ca227

57451047 has 8 divisors (see below), whose sum is σ = 78671856. Its totient is φ = 37265472.

The previous prime is 57451039. The next prime is 57451049. The reversal of 57451047 is 74015475.

57451047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57451047 - 23 = 57451039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57450999 and 57451017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57451049) 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, 258678 + ... + 258899.

It is an arithmetic number, because the mean of its divisors is an integer number (9833982).

Almost surely, 257451047 is an apocalyptic number.

57451047 is a deficient number, since it is larger than the sum of its proper divisors (21220809).

57451047 is a wasteful number, since it uses less digits than its factorization.

57451047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517617.

The product of its (nonzero) digits is 19600, while the sum is 33.

The square root of 57451047 is about 7579.6468915115. The cubic root of 57451047 is about 385.8625670723.

The spelling of 57451047 in words is "fifty-seven million, four hundred fifty-one thousand, forty-seven".

Divisors: 1 3 37 111 517577 1552731 19150349 57451047