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20488053 = 36829351
BaseRepresentation
bin100111000100…
…1111101110101
31102112220022210
41032021331311
520221104203
62011044033
7336100635
oct116117565
942486283
1020488053
1110623a83
126a40619
134324611
142a146c5
151bea803
hex1389f75

20488053 has 4 divisors (see below), whose sum is σ = 27317408. Its totient is φ = 13658700.

The previous prime is 20488033. The next prime is 20488057. The reversal of 20488053 is 35088402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20488053 - 26 = 20487989 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20488053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20488057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3414673 + ... + 3414678.

It is an arithmetic number, because the mean of its divisors is an integer number (6829352).

Almost surely, 220488053 is an apocalyptic number.

It is an amenable number.

20488053 is a deficient number, since it is larger than the sum of its proper divisors (6829355).

20488053 is an equidigital number, since it uses as much as digits as its factorization.

20488053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6829354.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 20488053 is about 4526.3730513514. The cubic root of 20488053 is about 273.6320072802.

It can be divided in two parts, 2048 and 8053, that added together give a palindrome (10101).

The spelling of 20488053 in words is "twenty million, four hundred eighty-eight thousand, fifty-three".

Divisors: 1 3 6829351 20488053