Search a number
-
+
11013140 = 225550657
BaseRepresentation
bin101010000000…
…110000010100
3202201112012002
4222000300110
510304410030
61032014432
7162416165
oct52006024
922645162
1011013140
116242376
123831418
132387a68
14166976c
15e78245
hexa80c14

11013140 has 12 divisors (see below), whose sum is σ = 23127636. Its totient is φ = 4405248.

The previous prime is 11013139. The next prime is 11013151. The reversal of 11013140 is 4131011.

It can be written as a sum of positive squares in 2 ways, for example, as 2521744 + 8491396 = 1588^2 + 2914^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275309 + ... + 275348.

It is an arithmetic number, because the mean of its divisors is an integer number (1927303).

Almost surely, 211013140 is an apocalyptic number.

11013140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11013140 is an abundant number, since it is smaller than the sum of its proper divisors (12114496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11013140 is a wasteful number, since it uses less digits than its factorization.

11013140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550666 (or 550664 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 11013140 is about 3318.6051286648. The cubic root of 11013140 is about 222.4865286630.

Adding to 11013140 its reverse (4131011), we get a palindrome (15144151).

The spelling of 11013140 in words is "eleven million, thirteen thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 550657 1101314 2202628 2753285 5506570 11013140