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19308869308 = 224831999217
BaseRepresentation
bin10001111110111001…
…011111011010111100
31211211200001012011201
4101332321133122330
5304021032304213
612512000025244
71252330452421
oct217671373274
954750035151
1019308869308
118209398333
1238aa602224
131a89452571
14d125b9d48
1578024b6dd
hex47ee5f6bc

19308869308 has 12 divisors (see below), whose sum is σ = 33797549632. Its totient is φ = 9652426560.

The previous prime is 19308869303. The next prime is 19308869347. The reversal of 19308869308 is 80396880391.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19308869303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 480285 + ... + 518932.

Almost surely, 219308869308 is an apocalyptic number.

It is an amenable number.

19308869308 is a deficient number, since it is larger than the sum of its proper divisors (14488680324).

19308869308 is a wasteful number, since it uses less digits than its factorization.

19308869308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004052 (or 1004050 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 19308869308 in words is "nineteen billion, three hundred eight million, eight hundred sixty-nine thousand, three hundred eight".

Divisors: 1 2 4 4831 9662 19324 999217 1998434 3996868 4827217327 9654434654 19308869308