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16240099 = 40140499
BaseRepresentation
bin111101111100…
…110111100011
31010120002020011
4331330313203
513124140344
61340025351
7255016141
oct75746743
933502204
1016240099
119192477
125532257
133497c35
14222a591
15165bd34
hexf7cde3

16240099 has 4 divisors (see below), whose sum is σ = 16281000. Its totient is φ = 16199200.

The previous prime is 16240069. The next prime is 16240121. The reversal of 16240099 is 99004261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16240099 - 219 = 15715811 is a prime.

It is a super-5 number, since 5×162400995 (a number of 37 digits) contains 55555 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16240099.

It is not an unprimeable number, because it can be changed into a prime (16240009) 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 3 ways as a sum of consecutive naturals, for example, 19849 + ... + 20650.

It is an arithmetic number, because the mean of its divisors is an integer number (4070250).

Almost surely, 216240099 is an apocalyptic number.

16240099 is a deficient number, since it is larger than the sum of its proper divisors (40901).

16240099 is an equidigital number, since it uses as much as digits as its factorization.

16240099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40900.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 16240099 is about 4029.9006191220. The cubic root of 16240099 is about 253.2383979844.

The spelling of 16240099 in words is "sixteen million, two hundred forty thousand, ninety-nine".

Divisors: 1 401 40499 16240099