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11212829 = 27134133
BaseRepresentation
bin101010110001…
…100000011101
3210002200002222
4222301200131
510332302304
61040155125
7164210315
oct52614035
923080088
1011212829
116369401
123908aa5
132427914
1416bc445
15eb74be
hexab181d

11212829 has 4 divisors (see below), whose sum is σ = 11219676. Its totient is φ = 11205984.

The previous prime is 11212823. The next prime is 11212849. The reversal of 11212829 is 92821211.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 10067929 + 1144900 = 3173^2 + 1070^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212829 - 28 = 11212573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11212798 and 11212807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647 + ... + 4779.

It is an arithmetic number, because the mean of its divisors is an integer number (2804919).

Almost surely, 211212829 is an apocalyptic number.

It is an amenable number.

11212829 is a deficient number, since it is larger than the sum of its proper divisors (6847).

11212829 is an equidigital number, since it uses as much as digits as its factorization.

11212829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846.

The product of its digits is 576, while the sum is 26.

The square root of 11212829 is about 3348.5562560602. The cubic root of 11212829 is about 223.8231823701.

The spelling of 11212829 in words is "eleven million, two hundred twelve thousand, eight hundred twenty-nine".

Divisors: 1 2713 4133 11212829