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1111441040 = 24513893013
BaseRepresentation
bin100001000111111…
…0011111010010000
32212110101001110222
41002033303322100
54234012103130
6302142012212
736354043613
oct10217637220
92773331428
101111441040
1152041a116
12270277068
13149358428
14a787a17a
1567895ce5
hex423f3e90

1111441040 has 20 divisors (see below), whose sum is σ = 2584100604. Its totient is φ = 444576384.

The previous prime is 1111441031. The next prime is 1111441061. The reversal of 1111441040 is 401441111.

It can be written as a sum of positive squares in 2 ways, for example, as 674129296 + 437311744 = 25964^2 + 20912^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6946427 + ... + 6946586.

Almost surely, 21111441040 is an apocalyptic number.

1111441040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111441040 is an abundant number, since it is smaller than the sum of its proper divisors (1472659564).

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

1111441040 is a wasteful number, since it uses less digits than its factorization.

1111441040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13893026 (or 13893020 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1111441040 is about 33338.2818993421. The cubic root of 1111441040 is about 1035.8466750828.

Adding to 1111441040 its reverse (401441111), we get a palindrome (1512882151).

The spelling of 1111441040 in words is "one billion, one hundred eleven million, four hundred forty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 13893013 27786026 55572052 69465065 111144104 138930130 222288208 277860260 555720520 1111441040