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11018740 = 225550937
BaseRepresentation
bin101010000010…
…000111110100
3202201210212111
4222002013310
510310044430
61032100404
7162441415
oct52020764
922653774
1011018740
1162465a7
123834704
13238a485
14166b80c
15e79c2a
hexa821f4

11018740 has 12 divisors (see below), whose sum is σ = 23139396. Its totient is φ = 4407488.

The previous prime is 11018729. The next prime is 11018741. The reversal of 11018740 is 4781011.

It can be written as a sum of positive squares in 2 ways, for example, as 5363856 + 5654884 = 2316^2 + 2378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11018741) 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, 275449 + ... + 275488.

It is an arithmetic number, because the mean of its divisors is an integer number (1928283).

Almost surely, 211018740 is an apocalyptic number.

11018740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11018740 is an abundant number, since it is smaller than the sum of its proper divisors (12120656).

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

11018740 is a wasteful number, since it uses less digits than its factorization.

11018740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550946 (or 550944 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 11018740 is about 3319.4487494161. The cubic root of 11018740 is about 222.5242325162.

Adding to 11018740 its reverse (4781011), we get a palindrome (15799751).

The spelling of 11018740 in words is "eleven million, eighteen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 550937 1101874 2203748 2754685 5509370 11018740