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14808769 = 37400237
BaseRepresentation
bin111000011111…
…011011000001
31000212100210221
4320133123001
512242340034
61245223041
7236605153
oct70373301
930770727
1014808769
1183a5058
124b61a81
1330b65b1
141d76ad3
151477bb4
hexe1f6c1

14808769 has 4 divisors (see below), whose sum is σ = 15209044. Its totient is φ = 14408496.

The previous prime is 14808767. The next prime is 14808779. The reversal of 14808769 is 96780841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96780841 = 349277309.

It can be written as a sum of positive squares in 2 ways, for example, as 5880625 + 8928144 = 2425^2 + 2988^2 .

It is a cyclic number.

It is not a de Polignac number, because 14808769 - 21 = 14808767 is a prime.

It is a super-2 number, since 2×148087692 = 438599278590722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14808767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200082 + ... + 200155.

It is an arithmetic number, because the mean of its divisors is an integer number (3802261).

Almost surely, 214808769 is an apocalyptic number.

It is an amenable number.

14808769 is a deficient number, since it is larger than the sum of its proper divisors (400275).

14808769 is an equidigital number, since it uses as much as digits as its factorization.

14808769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400274.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 14808769 is about 3848.2163400724. The cubic root of 14808769 is about 245.5686859053.

The spelling of 14808769 in words is "fourteen million, eight hundred eight thousand, seven hundred sixty-nine".

Divisors: 1 37 400237 14808769