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57407005 = 511481401
BaseRepresentation
bin1101101011111…
…1011000011101
311000000120121101
43122333120131
5104144011010
65410233101
71264644235
oct332773035
9130016541
1057407005
112a44a807
1217285791
13bb7c956
1478a4cc5
15508e73a
hex36bf61d

57407005 has 4 divisors (see below), whose sum is σ = 68888412. Its totient is φ = 45925600.

The previous prime is 57406997. The next prime is 57407027. The reversal of 57407005 is 50070475.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10374841 + 47032164 = 3221^2 + 6858^2 .

It is not a de Polignac number, because 57407005 - 23 = 57406997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5740696 + ... + 5740705.

It is an arithmetic number, because the mean of its divisors is an integer number (17222103).

Almost surely, 257407005 is an apocalyptic number.

It is an amenable number.

57407005 is a deficient number, since it is larger than the sum of its proper divisors (11481407).

57407005 is a wasteful number, since it uses less digits than its factorization.

57407005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11481406.

The product of its (nonzero) digits is 4900, while the sum is 28.

The square root of 57407005 is about 7576.7410540416. The cubic root of 57407005 is about 385.7639410565.

The spelling of 57407005 in words is "fifty-seven million, four hundred seven thousand, five".

Divisors: 1 5 11481401 57407005