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19414619911 = 109401444179
BaseRepresentation
bin10010000101001100…
…111001011100000111
31212010001000212201201
4102011030321130013
5304230120314121
612530254403331
71255053355261
oct220514713407
955101025651
1019414619911
118263057325
123919b00547
131aa532a69b
14d22666b31
15789689e91
hex485339707

19414619911 has 8 divisors (see below), whose sum is σ = 19641639600. Its totient is φ = 19188489600.

The previous prime is 19414619897. The next prime is 19414619951. The reversal of 19414619911 is 11991641491.

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 19414619911 - 223 = 19406231303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19414619951) 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, 178381 + ... + 265798.

It is an arithmetic number, because the mean of its divisors is an integer number (2455204950).

Almost surely, 219414619911 is an apocalyptic number.

19414619911 is a deficient number, since it is larger than the sum of its proper divisors (227019689).

19414619911 is a wasteful number, since it uses less digits than its factorization.

19414619911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444689.

The product of its digits is 69984, while the sum is 46.

The spelling of 19414619911 in words is "nineteen billion, four hundred fourteen million, six hundred nineteen thousand, nine hundred eleven".

Divisors: 1 109 401 43709 444179 48415511 178115779 19414619911