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20052799 = 131542523
BaseRepresentation
bin100110001111…
…1101100111111
31101201210021021
41030133230333
520113142144
61553445011
7332305654
oct114375477
941653237
1020052799
1110356a68
126870767
134201480
14293dc2b
151b61884
hex131fb3f

20052799 has 4 divisors (see below), whose sum is σ = 21595336. Its totient is φ = 18510264.

The previous prime is 20052793. The next prime is 20052811. The reversal of 20052799 is 99725002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20052799 - 27 = 20052671 is a prime.

It is a super-2 number, since 2×200527992 = 804229495468802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20052793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 771249 + ... + 771274.

It is an arithmetic number, because the mean of its divisors is an integer number (5398834).

Almost surely, 220052799 is an apocalyptic number.

20052799 is a deficient number, since it is larger than the sum of its proper divisors (1542537).

20052799 is a wasteful number, since it uses less digits than its factorization.

20052799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542536.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 20052799 is about 4478.0351718136. The cubic root of 20052799 is about 271.6804159969.

The spelling of 20052799 in words is "twenty million, fifty-two thousand, seven hundred ninety-nine".

Divisors: 1 13 1542523 20052799