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1044222413 = 1380999289
BaseRepresentation
bin111110001111011…
…001000111001101
32200202212222212012
4332033121013031
54114310104123
6251341151005
734606513133
oct7617310715
92622788765
101044222413
11496488833
1225185b465
131384518b0
149c97d753
1561a19378
hex3e3d91cd

1044222413 has 8 divisors (see below), whose sum is σ = 1125948600. Its totient is φ = 962696448.

The previous prime is 1044222397. The next prime is 1044222457. The reversal of 1044222413 is 3142224401.

It can be written as a sum of positive squares in 4 ways, for example, as 517198564 + 527023849 = 22742^2 + 22957^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1044222413 - 24 = 1044222397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044222013) 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, 39128 + ... + 60161.

It is an arithmetic number, because the mean of its divisors is an integer number (140743575).

Almost surely, 21044222413 is an apocalyptic number.

1044222413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1044222413 is a deficient number, since it is larger than the sum of its proper divisors (81726187).

1044222413 is an equidigital number, since it uses as much as digits as its factorization.

1044222413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100111.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1044222413 is about 32314.4304142901. The cubic root of 1044222413 is about 1014.5286989849.

Adding to 1044222413 its reverse (3142224401), we get a palindrome (4186446814).

The spelling of 1044222413 in words is "one billion, forty-four million, two hundred twenty-two thousand, four hundred thirteen".

Divisors: 1 13 809 10517 99289 1290757 80324801 1044222413