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16441037840 = 245205512973
BaseRepresentation
bin11110100111111011…
…00101010000010000
31120102210201020222102
433103331211100100
5232132401202330
611315232255532
71121265341633
oct172375452020
946383636872
1016441037840
116a775a0087
12322a0a15a8
131720265876
14b1d779c1a
156635b3945
hex3d3f65410

16441037840 has 20 divisors (see below), whose sum is σ = 38225413164. Its totient is φ = 6576415104.

The previous prime is 16441037827. The next prime is 16441037887. The reversal of 16441037840 is 4873014461.

It is a happy number.

16441037840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8300667664 + 8140370176 = 91108^2 + 90224^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×164410378403 (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16441037794 and 16441037803.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 102756407 + ... + 102756566.

Almost surely, 216441037840 is an apocalyptic number.

16441037840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16441037840 is an abundant number, since it is smaller than the sum of its proper divisors (21784375324).

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

16441037840 is a wasteful number, since it uses less digits than its factorization.

16441037840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205512986 (or 205512980 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 16441037840 in words is "sixteen billion, four hundred forty-one million, thirty-seven thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 205512973 411025946 822051892 1027564865 1644103784 2055129730 3288207568 4110259460 8220518920 16441037840