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11269129 = 25494421
BaseRepresentation
bin101010111111…
…010000001001
3210012112100011
4222333100021
510341103004
61041311521
7164533414
oct52772011
923175304
1011269129
1163a7733
1239355a1
132447431
1416d4b7b
15ec9004
hexabf409

11269129 has 4 divisors (see below), whose sum is σ = 11276100. Its totient is φ = 11262160.

The previous prime is 11269123. The next prime is 11269157. The reversal of 11269129 is 92196211.

11269129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92196211 = 458320117.

It can be written as a sum of positive squares in 2 ways, for example, as 9935104 + 1334025 = 3152^2 + 1155^2 .

It is a cyclic number.

It is not a de Polignac number, because 11269129 - 27 = 11269001 is a prime.

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 11269129.

It is not an unprimeable number, because it can be changed into a prime (11269123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339 + ... + 4759.

It is an arithmetic number, because the mean of its divisors is an integer number (2819025).

Almost surely, 211269129 is an apocalyptic number.

It is an amenable number.

11269129 is a deficient number, since it is larger than the sum of its proper divisors (6971).

11269129 is an equidigital number, since it uses as much as digits as its factorization.

11269129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970.

The product of its digits is 1944, while the sum is 31.

The square root of 11269129 is about 3356.9523380590. The cubic root of 11269129 is about 224.1971651052.

The spelling of 11269129 in words is "eleven million, two hundred sixty-nine thousand, one hundred twenty-nine".

Divisors: 1 2549 4421 11269129