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14664769 = 72299281
BaseRepresentation
bin110111111100…
…010001000001
31000121001021121
4313330101001
512223233034
61242152241
7235435300
oct67742101
930531247
1014664769
118306949
124ab2681
133065ba2
141d3a437
15144a1b4
hexdfc441

14664769 has 6 divisors (see below), whose sum is σ = 17059074. Its totient is φ = 12569760.

The previous prime is 14664739. The next prime is 14664773. The reversal of 14664769 is 96746641.

14664769 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 only one way, i.e., 11478544 + 3186225 = 3388^2 + 1785^2 .

It is not a de Polignac number, because 14664769 - 217 = 14533697 is a prime.

It is a super-2 number, since 2×146647692 = 430110899646722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14664709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 149592 + ... + 149689.

It is an arithmetic number, because the mean of its divisors is an integer number (2843179).

Almost surely, 214664769 is an apocalyptic number.

It is an amenable number.

14664769 is a deficient number, since it is larger than the sum of its proper divisors (2394305).

14664769 is an equidigital number, since it uses as much as digits as its factorization.

14664769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299295 (or 299288 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 14664769 is about 3829.4606669869. The cubic root of 14664769 is about 244.7701245189.

The spelling of 14664769 in words is "fourteen million, six hundred sixty-four thousand, seven hundred sixty-nine".

Divisors: 1 7 49 299281 2094967 14664769