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11109101 = 20875323
BaseRepresentation
bin101010011000…
…001011101101
3202220101211012
4222120023231
510320442401
61034035005
7163266023
oct52301355
922811735
1011109101
1162a8483
123878a65
1323bc643
141692713
15e968bb
hexa982ed

11109101 has 4 divisors (see below), whose sum is σ = 11116512. Its totient is φ = 11101692.

The previous prime is 11109097. The next prime is 11109107. The reversal of 11109101 is 10190111.

It is a happy number.

11109101 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 Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10190111 = 61167051.

It is a cyclic number.

It is not a de Polignac number, because 11109101 - 22 = 11109097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11109107) 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, 575 + ... + 4748.

It is an arithmetic number, because the mean of its divisors is an integer number (2779128).

Almost surely, 211109101 is an apocalyptic number.

It is an amenable number.

11109101 is a deficient number, since it is larger than the sum of its proper divisors (7411).

11109101 is an equidigital number, since it uses as much as digits as its factorization.

11109101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7410.

The product of its (nonzero) digits is 9, while the sum is 14.

The square root of 11109101 is about 3333.0318030286. The cubic root of 11109101 is about 223.1308595364.

Adding to 11109101 its reverse (10190111), we get a palindrome (21299212).

The spelling of 11109101 in words is "eleven million, one hundred nine thousand, one hundred one".

Divisors: 1 2087 5323 11109101