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2000057 = 2386959
BaseRepresentation
bin111101000010010111001
310202121120012
413220102321
51003000212
6110511305
723000033
oct7502271
93677505
102000057
111146744
12805535
13550487
143a0c53
15297922
hex1e84b9

2000057 has 4 divisors (see below), whose sum is σ = 2087040. Its totient is φ = 1913076.

The previous prime is 2000039. The next prime is 2000081. The reversal of 2000057 is 7500002.

Adding to 2000057 its reverse (7500002), we get a palindrome (9500059).

Subtracting 2000057 from its reverse (7500002), we obtain a palindrome (5499945).

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, and also an emirpimes, since its reverse is a distinct semiprime: 7500002 = 23750001.

It is a cyclic number.

It is not a de Polignac number, because 2000057 - 26 = 1999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43457 + ... + 43502.

It is an arithmetic number, because the mean of its divisors is an integer number (521760).

22000057 is an apocalyptic number.

It is an amenable number.

2000057 is a deficient number, since it is larger than the sum of its proper divisors (86983).

2000057 is an equidigital number, since it uses as much as digits as its factorization.

2000057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86982.

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 2000057 is about 1414.2337147728. The cubic root of 2000057 is about 125.9933019031.

The spelling of 2000057 in words is "two million, fifty-seven", and thus it is an aban number and an uban number.

Divisors: 1 23 86959 2000057