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20104113671 = 29838352353
BaseRepresentation
bin10010101110010011…
…000110111000000111
31220220002102210100122
4102232103012320013
5312133123114141
613122524532155
71311125101205
oct225623067007
956802383318
1020104113671
118587280184
123a909b105b
131b8512b965
14d8a068075
157c9e8464b
hex4ae4c6e07

20104113671 has 8 divisors (see below), whose sum is σ = 21047932080. Its totient is φ = 19177000192.

The previous prime is 20104113593. The next prime is 20104113683. The reversal of 20104113671 is 17631140102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20104113671 - 214 = 20104097287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20104113671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20104113571) 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 7 ways as a sum of consecutive naturals, for example, 4173770 + ... + 4178583.

It is an arithmetic number, because the mean of its divisors is an integer number (2630991510).

Almost surely, 220104113671 is an apocalyptic number.

20104113671 is a deficient number, since it is larger than the sum of its proper divisors (943818409).

20104113671 is an equidigital number, since it uses as much as digits as its factorization.

20104113671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8352465.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 20104113671 its reverse (17631140102), we get a palindrome (37735253773).

The spelling of 20104113671 in words is "twenty billion, one hundred four million, one hundred thirteen thousand, six hundred seventy-one".

Divisors: 1 29 83 2407 8352353 242218237 693245299 20104113671