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20441344313 = 131982758479
BaseRepresentation
bin10011000010011001…
…100010100100111001
31221202120222212211102
4103002121202210321
5313330441004223
613220212541145
71322361363005
oct230231424471
957676885742
1020441344313
11873a673595
123b659217b5
131c09c63910
14dbcb6d705
157e9899928
hex4c2662939

20441344313 has 8 divisors (see below), whose sum is σ = 23172374400. Its totient is φ = 17875831248.

The previous prime is 20441344279. The next prime is 20441344367. The reversal of 20441344313 is 31344314402.

It is a happy number.

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 20441344313 - 26 = 20441344249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20441344013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41378993 + ... + 41379486.

It is an arithmetic number, because the mean of its divisors is an integer number (2896546800).

Almost surely, 220441344313 is an apocalyptic number.

It is an amenable number.

20441344313 is a deficient number, since it is larger than the sum of its proper divisors (2731030087).

20441344313 is a wasteful number, since it uses less digits than its factorization.

20441344313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82758511.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20441344313 its reverse (31344314402), we get a palindrome (51785658715).

The spelling of 20441344313 in words is "twenty billion, four hundred forty-one million, three hundred forty-four thousand, three hundred thirteen".

Divisors: 1 13 19 247 82758479 1075860227 1572411101 20441344313