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4444779143 = 74713509967
BaseRepresentation
bin1000010001110110…
…11111001010000111
3102110202122011201202
410020323133022013
533100330413033
62013015013115
7215100666530
oct41073371207
912422564652
104444779143
111980a643a2
12a4066a19b
1355ab10c3c
14302453687
151b03318e8
hex108edf287

4444779143 has 8 divisors (see below), whose sum is σ = 5187827712. Its totient is φ = 3728750616.

The previous prime is 4444779137. The next prime is 4444779167. The reversal of 4444779143 is 3419774444.

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 4444779143 - 28 = 4444778887 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4444779103) 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, 6754655 + ... + 6755312.

It is an arithmetic number, because the mean of its divisors is an integer number (648478464).

Almost surely, 24444779143 is an apocalyptic number.

4444779143 is a deficient number, since it is larger than the sum of its proper divisors (743048569).

4444779143 is a wasteful number, since it uses less digits than its factorization.

4444779143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13510021.

The product of its digits is 1354752, while the sum is 47.

The square root of 4444779143 is about 66669.1768585754. The cubic root of 4444779143 is about 1644.1826537319.

The spelling of 4444779143 in words is "four billion, four hundred forty-four million, seven hundred seventy-nine thousand, one hundred forty-three".

Divisors: 1 7 47 329 13509967 94569769 634968449 4444779143