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57427401 = 319142467
BaseRepresentation
bin1101101100010…
…0010111001001
311000001121120210
43123010113021
5104200134101
65410511333
71265060553
oct333042711
9130047523
1057427401
112a464069
1217295549
13bb89015
1478ac4d3
1550957d6
hex36c45c9

57427401 has 4 divisors (see below), whose sum is σ = 76569872. Its totient is φ = 38284932.

The previous prime is 57427399. The next prime is 57427423. The reversal of 57427401 is 10472475.

57427401 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 not a de Polignac number, because 57427401 - 21 = 57427399 is a prime.

It is a super-2 number, since 2×574274012 = 6595812771229602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57427501) 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, 9571231 + ... + 9571236.

It is an arithmetic number, because the mean of its divisors is an integer number (19142468).

Almost surely, 257427401 is an apocalyptic number.

It is an amenable number.

57427401 is a deficient number, since it is larger than the sum of its proper divisors (19142471).

57427401 is a wasteful number, since it uses less digits than its factorization.

57427401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19142470.

The product of its (nonzero) digits is 7840, while the sum is 30.

The square root of 57427401 is about 7578.0868957805. The cubic root of 57427401 is about 385.8096213686.

Adding to 57427401 its reverse (10472475), we get a palindrome (67899876).

The spelling of 57427401 in words is "fifty-seven million, four hundred twenty-seven thousand, four hundred one".

Divisors: 1 3 19142467 57427401