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20054002323 = 3137145333581
BaseRepresentation
bin10010101011010011…
…111100101010010011
31220202121010212111210
4102223103330222103
5312032311033243
613113534511203
71306646131035
oct225323745223
956677125453
1020054002323
118560a63843
123a78065503
131b77934984
14d83541c55
157c5886933
hex4ab4fca93

20054002323 has 16 divisors (see below), whose sum is σ = 26953181856. Its totient is φ = 13262219520.

The previous prime is 20054002313. The next prime is 20054002337. The reversal of 20054002323 is 32320045002.

It is not a de Polignac number, because 20054002323 - 212 = 20053998227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20054002323.

It is not an unprimeable number, because it can be changed into a prime (20054002313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580393 + ... + 613973.

It is an arithmetic number, because the mean of its divisors is an integer number (1684573866).

Almost surely, 220054002323 is an apocalyptic number.

20054002323 is a deficient number, since it is larger than the sum of its proper divisors (6899179533).

20054002323 is a wasteful number, since it uses less digits than its factorization.

20054002323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35174.

The product of its (nonzero) digits is 1440, while the sum is 21.

Adding to 20054002323 its reverse (32320045002), we get a palindrome (52374047325).

The spelling of 20054002323 in words is "twenty billion, fifty-four million, two thousand, three hundred twenty-three".

Divisors: 1 3 137 411 1453 4359 33581 100743 199061 597183 4600597 13801791 48793193 146379579 6684667441 20054002323