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11033131 = 61180871
BaseRepresentation
bin101010000101…
…101000101011
3202202112121111
4222011220223
510311030011
61032251151
7162531364
oct52055053
922675544
1011033131
11625639a
123840ab7
132393ba5
141672b6b
15e7e121
hexa85a2b

11033131 has 4 divisors (see below), whose sum is σ = 11214064. Its totient is φ = 10852200.

The previous prime is 11033101. The next prime is 11033159. The reversal of 11033131 is 13133011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11033131 - 213 = 11024939 is a prime.

It is a super-2 number, since 2×110331312 = 243459959326322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11033101) 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, 90375 + ... + 90496.

It is an arithmetic number, because the mean of its divisors is an integer number (2803516).

Almost surely, 211033131 is an apocalyptic number.

11033131 is a deficient number, since it is larger than the sum of its proper divisors (180933).

11033131 is an equidigital number, since it uses as much as digits as its factorization.

11033131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180932.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 11033131 is about 3321.6157213019. The cubic root of 11033131 is about 222.6210661258.

Adding to 11033131 its reverse (13133011), we get a palindrome (24166142).

The spelling of 11033131 in words is "eleven million, thirty-three thousand, one hundred thirty-one".

Divisors: 1 61 180871 11033131