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16992875393 = 131322998809
BaseRepresentation
bin11111101001101101…
…01011001110000001
31121212021002111210022
433310312223032001
5234300134003033
611450104143225
71141046025524
oct176466531601
947767074708
1016992875393
11723004287a
123362a67b15
1317aa69a570
14b72b86bbb
15696c6b098
hex3f4dab381

16992875393 has 8 divisors (see below), whose sum is σ = 18301588200. Its totient is φ = 15684386688.

The previous prime is 16992875377. The next prime is 16992875429. The reversal of 16992875393 is 39357829961.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1151380624 + 15841494769 = 33932^2 + 125863^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16992875393 - 24 = 16992875377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16992875303) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 122573 + ... + 221381.

It is an arithmetic number, because the mean of its divisors is an integer number (2287698525).

Almost surely, 216992875393 is an apocalyptic number.

16992875393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16992875393 is a deficient number, since it is larger than the sum of its proper divisors (1308712807).

16992875393 is a wasteful number, since it uses less digits than its factorization.

16992875393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112051.

The product of its digits is 22044960, while the sum is 62.

The spelling of 16992875393 in words is "sixteen billion, nine hundred ninety-two million, eight hundred seventy-five thousand, three hundred ninety-three".

Divisors: 1 13 13229 98809 171977 1284517 1307144261 16992875393