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57065441 = 67851723
BaseRepresentation
bin1101100110101…
…1111111100001
310222101020001212
43121223333201
5104102043231
65355035505
71262022356
oct331537741
9128336055
1057065441
112a237124
121713bb95
13ba90344
14781662d
15502342b
hex366bfe1

57065441 has 4 divisors (see below), whose sum is σ = 57917232. Its totient is φ = 56213652.

The previous prime is 57065419. The next prime is 57065443. The reversal of 57065441 is 14456075.

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 a cyclic number.

It is not a de Polignac number, because 57065441 - 26 = 57065377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57065398 and 57065407.

It is not an unprimeable number, because it can be changed into a prime (57065443) by changing a digit.

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, 425795 + ... + 425928.

It is an arithmetic number, because the mean of its divisors is an integer number (14479308).

Almost surely, 257065441 is an apocalyptic number.

It is an amenable number.

57065441 is a deficient number, since it is larger than the sum of its proper divisors (851791).

57065441 is an equidigital number, since it uses as much as digits as its factorization.

57065441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851790.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 57065441 is about 7554.1671281485. The cubic root of 57065441 is about 384.9973373628.

The spelling of 57065441 in words is "fifty-seven million, sixty-five thousand, four hundred forty-one".

Divisors: 1 67 851723 57065441