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18035973108 = 22331049159199
BaseRepresentation
bin10000110011000001…
…110001101111110100
31201112221212100212000
4100303001301233310
5243414202114413
612141405255300
71205643145656
oct206301615764
951487770760
1018035973108
1177159225aa
1235b4264530
13191581724a
14c315126d6
15708612073
hex433071bf4

18035973108 has 48 divisors (see below), whose sum is σ = 46804800000. Its totient is φ = 6006222144.

The previous prime is 18035973107. The next prime is 18035973127. The reversal of 18035973108 is 80137953081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18035973101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33693 + ... + 192891.

It is an arithmetic number, because the mean of its divisors is an integer number (975100000).

Almost surely, 218035973108 is an apocalyptic number.

18035973108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18035973108 is an abundant number, since it is smaller than the sum of its proper divisors (28768826892).

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

18035973108 is a wasteful number, since it uses less digits than its factorization.

18035973108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160261 (or 160253 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 18035973108 in words is "eighteen billion, thirty-five million, nine hundred seventy-three thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1049 2098 3147 4196 6294 9441 12588 18882 28323 37764 56646 113292 159199 318398 477597 636796 955194 1432791 1910388 2865582 4298373 5731164 8596746 17193492 166999751 333999502 500999253 667999004 1001998506 1502997759 2003997012 3005995518 4508993277 6011991036 9017986554 18035973108