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20024053 = 723277449
BaseRepresentation
bin100110001100…
…0101011110101
31101200022211121
41030120223311
520111232203
61553103541
7332126110
oct114305365
941608747
1020024053
1110337405
126857bb1
1341c136a
142933577
151b580bd
hex1318af5

20024053 has 16 divisors (see below), whose sum is σ = 24019200. Its totient is φ = 16321536.

The previous prime is 20024009. The next prime is 20024077. The reversal of 20024053 is 35042002.

It is a de Polignac number, because none of the positive numbers 2k-20024053 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 (20024083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44373 + ... + 44821.

It is an arithmetic number, because the mean of its divisors is an integer number (1501200).

Almost surely, 220024053 is an apocalyptic number.

20024053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20024053 is a deficient number, since it is larger than the sum of its proper divisors (3995147).

20024053 is a wasteful number, since it uses less digits than its factorization.

20024053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20024053 is about 4474.8243540948. The cubic root of 20024053 is about 271.5505345441.

Adding to 20024053 its reverse (35042002), we get a palindrome (55066055).

The spelling of 20024053 in words is "twenty million, twenty-four thousand, fifty-three".

Divisors: 1 7 23 161 277 449 1939 3143 6371 10327 44597 72289 124373 870611 2860579 20024053