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19130879717 = 231794646801
BaseRepresentation
bin10001110100010010…
…100000111011100101
31211101021010101100122
4101310102200323211
5303140001122332
612442201051325
71245036536345
oct216422407345
954337111318
1019130879717
1181279790a4
12385aa86b45
131a5b603791
14cd6ac6d25
1576e7ddc12
hex4744a0ee5

19130879717 has 8 divisors (see below), whose sum is σ = 20074184640. Its totient is φ = 18196868800.

The previous prime is 19130879707. The next prime is 19130879723. The reversal of 19130879717 is 71797803191.

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 19130879717 - 28 = 19130879461 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 (19130879707) 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, 2319284 + ... + 2327517.

It is an arithmetic number, because the mean of its divisors is an integer number (2509273080).

Almost surely, 219130879717 is an apocalyptic number.

It is an amenable number.

19130879717 is a deficient number, since it is larger than the sum of its proper divisors (943304923).

19130879717 is a wasteful number, since it uses less digits than its factorization.

19130879717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647003.

The product of its (nonzero) digits is 666792, while the sum is 53.

The spelling of 19130879717 in words is "nineteen billion, one hundred thirty million, eight hundred seventy-nine thousand, seven hundred seventeen".

Divisors: 1 23 179 4117 4646801 106876423 831777379 19130879717