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16390142496 = 2532731312763
BaseRepresentation
bin11110100001110110…
…11011101000100000
31120022020221111200200
433100323123220200
5232031334024441
611310213345200
71120106625000
oct172073335040
946266844620
1016390142496
116a50898712
123215038200
131712855a90
14b16acc000
1565ddad7b6
hex3d0edba20

16390142496 has 288 divisors, whose sum is σ = 58540809600. Its totient is φ = 4322336256.

The previous prime is 16390142473. The next prime is 16390142497. The reversal of 16390142496 is 69424109361.

16390142496 is a `hidden beast` number, since 1 + 6 + 390 + 14 + 249 + 6 = 666.

16390142496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

It is a super-2 number, since 2×163901424962 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16390142497) 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 47 ways as a sum of consecutive naturals, for example, 1277811 + ... + 1290573.

It is an arithmetic number, because the mean of its divisors is an integer number (203266700).

Almost surely, 216390142496 is an apocalyptic number.

16390142496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16390142496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29270404800).

16390142496 is an abundant number, since it is smaller than the sum of its proper divisors (42150667104).

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

16390142496 is a wasteful number, since it uses less digits than its factorization.

16390142496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813 (or 12788 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 16390142496 in words is "sixteen billion, three hundred ninety million, one hundred forty-two thousand, four hundred ninety-six".