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20020353 = 329359641
BaseRepresentation
bin100110001011…
…1110010000001
31101200010202120
41030113302001
520111122403
61553034453
7332112243
oct114276201
941603676
1020020353
1110334651
126855a29
1341bc782
142932093
151b56e53
hex1317c81

20020353 has 16 divisors (see below), whose sum is σ = 27734400. Its totient is φ = 12830720.

The previous prime is 20020333. The next prime is 20020387. The reversal of 20020353 is 35302002.

It is a cyclic number.

It is not a de Polignac number, because 20020353 - 26 = 20020289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020303) 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, 30913 + ... + 31553.

It is an arithmetic number, because the mean of its divisors is an integer number (1733400).

Almost surely, 220020353 is an apocalyptic number.

It is an amenable number.

20020353 is a deficient number, since it is larger than the sum of its proper divisors (7714047).

20020353 is a wasteful number, since it uses less digits than its factorization.

20020353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 20020353 is about 4474.4109109468. The cubic root of 20020353 is about 271.5338080125.

Adding to 20020353 its reverse (35302002), we get a palindrome (55322355).

The spelling of 20020353 in words is "twenty million, twenty thousand, three hundred fifty-three".

Divisors: 1 3 29 87 359 641 1077 1923 10411 18589 31233 55767 230119 690357 6673451 20020353