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1444204133 = 23331719553
BaseRepresentation
bin101011000010100…
…1100111001100101
310201122112011121222
41112011030321211
510424204013013
6355150150125
750534350451
oct12605147145
93648464558
101444204133
11681240a39
123437b2345
131a0287a78
14d9b3b661
1586bc7508
hex5614ce65

1444204133 has 8 divisors (see below), whose sum is σ = 1455052248. Its totient is φ = 1433396224.

The previous prime is 1444204127. The next prime is 1444204163. The reversal of 1444204133 is 3314024441.

It can be written as a sum of positive squares in 4 ways, for example, as 32924644 + 1411279489 = 5738^2 + 37567^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1444204133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444204163) 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, 64085 + ... + 83637.

It is an arithmetic number, because the mean of its divisors is an integer number (181881531).

Almost surely, 21444204133 is an apocalyptic number.

It is an amenable number.

1444204133 is a deficient number, since it is larger than the sum of its proper divisors (10848115).

1444204133 is a wasteful number, since it uses less digits than its factorization.

1444204133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20103.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1444204133 is about 38002.6858656069. The cubic root of 1444204133 is about 1130.3411226366.

Adding to 1444204133 its reverse (3314024441), we get a palindrome (4758228574).

The spelling of 1444204133 in words is "one billion, four hundred forty-four million, two hundred four thousand, one hundred thirty-three".

Divisors: 1 233 317 19553 73861 4555849 6198301 1444204133