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11106145 = 52221229
BaseRepresentation
bin101010010111…
…011101100001
3202220020202201
4222113131201
510320344040
61034013201
7163254301
oct52273541
922806681
1011106145
1162a6236
123877201
1323bb1ab
141691601
15e95a9a
hexa97761

11106145 has 4 divisors (see below), whose sum is σ = 13327380. Its totient is φ = 8884912.

The previous prime is 11106143. The next prime is 11106149. The reversal of 11106145 is 54160111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54160111 = 54799013.

It can be written as a sum of positive squares in 2 ways, for example, as 5875776 + 5230369 = 2424^2 + 2287^2 .

It is a cyclic number.

It is not a de Polignac number, because 11106145 - 21 = 11106143 is a prime.

It is a super-2 number, since 2×111061452 = 246692913522050, which contains 22 as substring.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (11106143) 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, 1110610 + ... + 1110619.

It is an arithmetic number, because the mean of its divisors is an integer number (3331845).

Almost surely, 211106145 is an apocalyptic number.

It is an amenable number.

11106145 is a deficient number, since it is larger than the sum of its proper divisors (2221235).

11106145 is an equidigital number, since it uses as much as digits as its factorization.

11106145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221234.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 11106145 is about 3332.5883334129. The cubic root of 11106145 is about 223.1110669558. Note that the first 3 decimals are identical.

Adding to 11106145 its reverse (54160111), we get a palindrome (65266256).

The spelling of 11106145 in words is "eleven million, one hundred six thousand, one hundred forty-five".

Divisors: 1 5 2221229 11106145