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20023241 = 731531741
BaseRepresentation
bin100110001100…
…0011111001001
31101200021201112
41030120133021
520111220431
61553100105
7332123540
oct114303711
941607645
1020023241
1110336837
126857635
1341c0b94
142933157
151b57c2b
hex13187c9

20023241 has 16 divisors (see below), whose sum is σ = 24081408. Its totient is φ = 16286400.

The previous prime is 20023187. The next prime is 20023259. The reversal of 20023241 is 14232002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20023241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10631 + ... + 12371.

It is an arithmetic number, because the mean of its divisors is an integer number (1505088).

Almost surely, 220023241 is an apocalyptic number.

It is an amenable number.

20023241 is a deficient number, since it is larger than the sum of its proper divisors (4058167).

20023241 is a wasteful number, since it uses less digits than its factorization.

20023241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20023241 is about 4474.7336233568. The cubic root of 20023241 is about 271.5468639250.

Adding to 20023241 its reverse (14232002), we get a palindrome (34255243).

The spelling of 20023241 in words is "twenty million, twenty-three thousand, two hundred forty-one".

Divisors: 1 7 31 53 217 371 1643 1741 11501 12187 53971 92273 377797 645911 2860463 20023241