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16393985088 = 2631317222727
BaseRepresentation
bin11110100010010100…
…00101110001000000
31120022112011201201220
433101022011301000
5232033330010323
611310431555040
71120154400615
oct172112056100
946275151656
1016393985088
116a52a82708
12321638ba80
13171359cac0
14b1740c50c
1565e3bc0e3
hex3d1285c40

16393985088 has 168 divisors, whose sum is σ = 49623951552. Its totient is φ = 4747370496.

The previous prime is 16393985063. The next prime is 16393985089. The reversal of 16393985088 is 88058939361.

It is not an unprimeable number, because it can be changed into a prime (16393985089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 709981 + ... + 732707.

It is an arithmetic number, because the mean of its divisors is an integer number (295380664).

Almost surely, 216393985088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16393985088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24811975776).

16393985088 is an abundant number, since it is smaller than the sum of its proper divisors (33229966464).

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

16393985088 is a wasteful number, since it uses less digits than its factorization.

16393985088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22789 (or 22762 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 60.

The spelling of 16393985088 in words is "sixteen billion, three hundred ninety-three million, nine hundred eighty-five thousand, eighty-eight".