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11290138 = 231182099
BaseRepresentation
bin101011000100…
…011000011010
3210020121011021
4223010120122
510342241023
61041553054
7164651566
oct53043032
923217137
1011290138
1164114a2
12394578a
132453b72
1416dc6a6
15ed035d
hexac461a

11290138 has 8 divisors (see below), whose sum is σ = 17481600. Its totient is φ = 5462940.

The previous prime is 11290133. The next prime is 11290157. The reversal of 11290138 is 83109211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11290133) 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, 90988 + ... + 91111.

It is an arithmetic number, because the mean of its divisors is an integer number (2185200).

Almost surely, 211290138 is an apocalyptic number.

11290138 is a deficient number, since it is larger than the sum of its proper divisors (6191462).

11290138 is a wasteful number, since it uses less digits than its factorization.

11290138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182132.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 11290138 is about 3360.0800585700. The cubic root of 11290138 is about 224.3364019597.

Adding to 11290138 its reverse (83109211), we get a palindrome (94399349).

The spelling of 11290138 in words is "eleven million, two hundred ninety thousand, one hundred thirty-eight".

Divisors: 1 2 31 62 182099 364198 5645069 11290138