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20058593 = 25778049
BaseRepresentation
bin100110010000…
…1000111100001
31101202002012212
41030201013201
520113333333
61553531505
7332331602
oct114410741
941662185
1020058593
1110360355
126873b95
134203cb9
142941da9
151b63448
hex13211e1

20058593 has 4 divisors (see below), whose sum is σ = 20136900. Its totient is φ = 19980288.

The previous prime is 20058583. The next prime is 20058611. The reversal of 20058593 is 39585002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39585002 = 219792501.

It can be written as a sum of positive squares in 2 ways, for example, as 13667809 + 6390784 = 3697^2 + 2528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20058593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20058583) 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, 38768 + ... + 39281.

It is an arithmetic number, because the mean of its divisors is an integer number (5034225).

Almost surely, 220058593 is an apocalyptic number.

It is an amenable number.

20058593 is a deficient number, since it is larger than the sum of its proper divisors (78307).

20058593 is an equidigital number, since it uses as much as digits as its factorization.

20058593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78306.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 20058593 is about 4478.6820606067. The cubic root of 20058593 is about 271.7065796719.

The spelling of 20058593 in words is "twenty million, fifty-eight thousand, five hundred ninety-three".

Divisors: 1 257 78049 20058593