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2005393 = 131923353
BaseRepresentation
bin111101001100110010001
310202212212211
413221212101
51003133033
6110552121
723021425
oct7514621
93685784
102005393
11114a755
12808641
13552a30
143a2b85
152992cd
hex1e9991

2005393 has 16 divisors (see below), whose sum is σ = 2378880. Its totient is φ = 1672704.

The previous prime is 2005387. The next prime is 2005397. The reversal of 2005393 is 3935002.

It is a cyclic number.

It is not a de Polignac number, because 2005393 - 29 = 2004881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005397) 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 15 ways as a sum of consecutive naturals, for example, 5505 + ... + 5857.

It is an arithmetic number, because the mean of its divisors is an integer number (148680).

22005393 is an apocalyptic number.

2005393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2005393 is a deficient number, since it is larger than the sum of its proper divisors (373487).

2005393 is a wasteful number, since it uses less digits than its factorization.

2005393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 2005393 is about 1416.1189921754. The cubic root of 2005393 is about 126.1052492562.

The spelling of 2005393 in words is "two million, five thousand, three hundred ninety-three".

Divisors: 1 13 19 23 247 299 353 437 4589 5681 6707 8119 87191 105547 154261 2005393