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19108294848 = 2633173120983
BaseRepresentation
bin10001110010111100…
…010111000011000000
31211022200121221202000
4101302330113003000
5303113210413343
612440033024000
71244343553266
oct216274270300
954280557660
1019108294848
118116152815
1238533b5000
131a56a26956
14cd3ac8436
1576c82bed3
hex472f170c0

19108294848 has 224 divisors, whose sum is σ = 61400862720. Its totient is φ = 5801103360.

The previous prime is 19108294841. The next prime is 19108294871. The reversal of 19108294848 is 84849280191.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 19108294794 and 19108294803.

It is not an unprimeable number, because it can be changed into a prime (19108294841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 900165 + ... + 921147.

Almost surely, 219108294848 is an apocalyptic number.

19108294848 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19108294848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30700431360).

19108294848 is an abundant number, since it is smaller than the sum of its proper divisors (42292567872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19108294848 is a wasteful number, since it uses less digits than its factorization.

19108294848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21052 (or 21036 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The spelling of 19108294848 in words is "nineteen billion, one hundred eight million, two hundred ninety-four thousand, eight hundred forty-eight".