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11027838 = 231837973
BaseRepresentation
bin101010000100…
…010101111110
3202202021100110
4222010111332
510310342323
61032210450
7162510063
oct52042576
922667313
1011027838
116252418
123839a26
132391663
141670c6a
15e7c793
hexa8457e

11027838 has 8 divisors (see below), whose sum is σ = 22055688. Its totient is φ = 3675944.

The previous prime is 11027777. The next prime is 11027839. The reversal of 11027838 is 83872011.

Adding to 11027838 its reverse (83872011), we get a palindrome (94899849).

It is a happy number.

11027838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

11027838 is an admirable number.

It is a super-2 number, since 2×110278382 = 243226421908488, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11027839) 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, 918981 + ... + 918992.

It is an arithmetic number, because the mean of its divisors is an integer number (2756961).

Almost surely, 211027838 is an apocalyptic number.

11027838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11027838 is a wasteful number, since it uses less digits than its factorization.

11027838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837978.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 11027838 is about 3320.8188749162. The cubic root of 11027838 is about 222.5854605852.

The spelling of 11027838 in words is "eleven million, twenty-seven thousand, eight hundred thirty-eight".

Divisors: 1 2 3 6 1837973 3675946 5513919 11027838