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57130401 = 319043467
BaseRepresentation
bin1101100111101…
…1110110100001
310222111112011210
43121323312201
5104111133101
65400300333
71262412636
oct331736641
9128445153
1057130401
112a280a09
12171716a9
13bab3a93
14783218d
1550377d6
hex367bda1

57130401 has 4 divisors (see below), whose sum is σ = 76173872. Its totient is φ = 38086932.

The previous prime is 57130393. The next prime is 57130417. The reversal of 57130401 is 10403175.

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 57130401 - 23 = 57130393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57130471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9521731 + ... + 9521736.

It is an arithmetic number, because the mean of its divisors is an integer number (19043468).

Almost surely, 257130401 is an apocalyptic number.

It is an amenable number.

57130401 is a deficient number, since it is larger than the sum of its proper divisors (19043471).

57130401 is a wasteful number, since it uses less digits than its factorization.

57130401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19043470.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 57130401 is about 7558.4655188735. The cubic root of 57130401 is about 385.1433682053.

Adding to 57130401 its reverse (10403175), we get a palindrome (67533576).

The spelling of 57130401 in words is "fifty-seven million, one hundred thirty thousand, four hundred one".

Divisors: 1 3 19043467 57130401