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11281038 = 234094597
BaseRepresentation
bin101011000010…
…001010001110
3210020010200020
4223002022032
510341443123
61041443010
7164613216
oct53021216
923203606
1011281038
11640567a
123940466
13244c992
1416d9246
15ecc7e3
hexac228e

11281038 has 16 divisors (see below), whose sum is σ = 22622160. Its totient is φ = 3750336.

The previous prime is 11281037. The next prime is 11281051. The reversal of 11281038 is 83018211.

It is a junction number, because it is equal to n+sod(n) for n = 11280999 and 11281017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11281031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156 + ... + 4752.

It is an arithmetic number, because the mean of its divisors is an integer number (1413885).

Almost surely, 211281038 is an apocalyptic number.

11281038 is an abundant number, since it is smaller than the sum of its proper divisors (11341122).

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

11281038 is a wasteful number, since it uses less digits than its factorization.

11281038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 11281038 is about 3358.7256511957. The cubic root of 11281038 is about 224.2761130602.

Adding to 11281038 its reverse (83018211), we get a palindrome (94299249).

The spelling of 11281038 in words is "eleven million, two hundred eighty-one thousand, thirty-eight".

Divisors: 1 2 3 6 409 818 1227 2454 4597 9194 13791 27582 1880173 3760346 5640519 11281038