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1444200213 = 3481400071
BaseRepresentation
bin101011000010100…
…1011111100010101
310201122111222020210
41112011023330111
510424203401323
6355150120033
750534333151
oct12605137425
93648458223
101444200213
11681238aa5
123437b0019
131a0286051
14d9b3a061
1586bc6293
hex5614bf15

1444200213 has 4 divisors (see below), whose sum is σ = 1925600288. Its totient is φ = 962800140.

The previous prime is 1444200151. The next prime is 1444200217. The reversal of 1444200213 is 3120024441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1444200213 - 220 = 1443151637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444200213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444200217) 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, 240700033 + ... + 240700038.

It is an arithmetic number, because the mean of its divisors is an integer number (481400072).

Almost surely, 21444200213 is an apocalyptic number.

It is an amenable number.

1444200213 is a deficient number, since it is larger than the sum of its proper divisors (481400075).

1444200213 is an equidigital number, since it uses as much as digits as its factorization.

1444200213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481400074.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1444200213 is about 38002.6342902699. The cubic root of 1444200213 is about 1130.3400999416.

Adding to 1444200213 its reverse (3120024441), we get a palindrome (4564224654).

The spelling of 1444200213 in words is "one billion, four hundred forty-four million, two hundred thousand, two hundred thirteen".

Divisors: 1 3 481400071 1444200213