Search a number
-
+
19838955192 = 2337118089019
BaseRepresentation
bin10010011110011111…
…100110111010111000
31220012121111100022020
4102132133212322320
5311112233031232
613040333354440
71301425223340
oct223637467270
956177440266
1019838955192
118460633741
123a18038a20
131b4220c754
14d62b63d20
157b1a58e2c
hex49e7e6eb8

19838955192 has 32 divisors (see below), whose sum is σ = 56682729600. Its totient is φ = 5668272864.

The previous prime is 19838955179. The next prime is 19838955209. The reversal of 19838955192 is 29155983891.

It is a super-3 number, since 3×198389551923 (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59044342 + ... + 59044677.

It is an arithmetic number, because the mean of its divisors is an integer number (1771335300).

Almost surely, 219838955192 is an apocalyptic number.

19838955192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19838955192 is an abundant number, since it is smaller than the sum of its proper divisors (36843774408).

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

19838955192 is a wasteful number, since it uses less digits than its factorization.

19838955192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118089035 (or 118089031 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 60.

The spelling of 19838955192 in words is "nineteen billion, eight hundred thirty-eight million, nine hundred fifty-five thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 84 168 118089019 236178038 354267057 472356076 708534114 826623133 944712152 1417068228 1653246266 2479869399 2834136456 3306492532 4959738798 6612985064 9919477596 19838955192