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18383125750 = 253116684773
BaseRepresentation
bin10001000111101110…
…000011110011110110
31202110011002112202021
4101013232003303312
5300122040011000
612240050103354
71220356663543
oct210756036366
952404075667
1018383125750
117883882510
12369057ab5a
13196c714402
14c6567bbca
15728d3711a
hex447b83cf6

18383125750 has 32 divisors (see below), whose sum is σ = 37541690784. Its totient is φ = 6684772000.

The previous prime is 18383125721. The next prime is 18383125771. The reversal of 18383125750 is 5752138381.

It is a junction number, because it is equal to n+sod(n) for n = 18383125697 and 18383125706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3339637 + ... + 3345136.

It is an arithmetic number, because the mean of its divisors is an integer number (1173177837).

Almost surely, 218383125750 is an apocalyptic number.

18383125750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18383125750 is an abundant number, since it is smaller than the sum of its proper divisors (19158565034).

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

18383125750 is a wasteful number, since it uses less digits than its factorization.

18383125750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684801 (or 6684791 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 18383125750 in words is "eighteen billion, three hundred eighty-three million, one hundred twenty-five thousand, seven hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 125 250 275 550 1375 2750 6684773 13369546 33423865 66847730 73532503 147065006 167119325 334238650 367662515 735325030 835596625 1671193250 1838312575 3676625150 9191562875 18383125750