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18383827382 = 280657113963
BaseRepresentation
bin10001000111110000…
…101111000110110110
31202110012102012012122
4101013300233012312
5300122224434012
612240113115542
71220365645244
oct210760570666
952405365178
1018383827382
117884211678
123690858bb2
13196c8cb88b
14c657c1794
15728e24e72
hex447c2f1b6

18383827382 has 8 divisors (see below), whose sum is σ = 27576324936. Its totient is φ = 9191719072.

The previous prime is 18383827379. The next prime is 18383827409. The reversal of 18383827382 is 28372838381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×183838273822 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104333 + ... + 218295.

It is an arithmetic number, because the mean of its divisors is an integer number (3447040617).

Almost surely, 218383827382 is an apocalyptic number.

18383827382 is a deficient number, since it is larger than the sum of its proper divisors (9192497554).

18383827382 is a wasteful number, since it uses less digits than its factorization.

18383827382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194622.

The product of its digits is 3096576, while the sum is 53.

The spelling of 18383827382 in words is "eighteen billion, three hundred eighty-three million, eight hundred twenty-seven thousand, three hundred eighty-two".

Divisors: 1 2 80657 113963 161314 227926 9191913691 18383827382