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14979828169 = 30194961851
BaseRepresentation
bin11011111001101111…
…00000100111001001
31102122222012010010201
431330313200213021
5221134314000134
610514233412201
71040133303265
oct157467404711
942588163121
1014979828169
1163977a4689
122aa086a061
131549605667
14a216930a5
155ca17c914
hex37cde09c9

14979828169 has 4 divisors (see below), whose sum is σ = 14984793040. Its totient is φ = 14974863300.

The previous prime is 14979828139. The next prime is 14979828179. The reversal of 14979828169 is 96182897941.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96182897941 = 137398684457.

It is a cyclic number.

It is not a de Polignac number, because 14979828169 - 225 = 14946273737 is a prime.

It is a super-2 number, since 2×149798281692 (a number of 21 digits) contains 22 as substring.

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 14979828169.

It is not an unprimeable number, because it can be changed into a prime (14979828139) 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 3 ways as a sum of consecutive naturals, for example, 2477907 + ... + 2483944.

It is an arithmetic number, because the mean of its divisors is an integer number (3746198260).

Almost surely, 214979828169 is an apocalyptic number.

It is an amenable number.

14979828169 is a deficient number, since it is larger than the sum of its proper divisors (4964871).

14979828169 is an equidigital number, since it uses as much as digits as its factorization.

14979828169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4964870.

The product of its digits is 15676416, while the sum is 64.

The spelling of 14979828169 in words is "fourteen billion, nine hundred seventy-nine million, eight hundred twenty-eight thousand, one hundred sixty-nine".

Divisors: 1 3019 4961851 14979828169