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1444344143 = 11151869563
BaseRepresentation
bin101011000010110…
…1111000101001111
310201122210021200112
41112011233011033
510424223003033
6355153150235
750535502604
oct12605570517
93648707615
101444344143
11681327150
1234385b37b
131a0306708
14d9b766ab
1586c03c48
hex5616f14f

1444344143 has 8 divisors (see below), whose sum is σ = 1586084736. Its totient is φ = 1304343000.

The previous prime is 1444344127. The next prime is 1444344193. The reversal of 1444344143 is 3414434441.

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 1444344143 - 24 = 1444344127 is a prime.

It is a super-2 number, since 2×14443441432 = 4172260006836808898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444344103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433121 + ... + 436442.

It is an arithmetic number, because the mean of its divisors is an integer number (198260592).

Almost surely, 21444344143 is an apocalyptic number.

1444344143 is a deficient number, since it is larger than the sum of its proper divisors (141740593).

1444344143 is a wasteful number, since it uses less digits than its factorization.

1444344143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869725.

The product of its digits is 36864, while the sum is 32.

The square root of 1444344143 is about 38004.5279276036. The cubic root of 1444344143 is about 1130.3776488550.

Adding to 1444344143 its reverse (3414434441), we get a palindrome (4858778584).

The spelling of 1444344143 in words is "one billion, four hundred forty-four million, three hundred forty-four thousand, one hundred forty-three".

Divisors: 1 11 151 1661 869563 9565193 131304013 1444344143