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4444102391 = 28181119501
BaseRepresentation
bin1000010001110001…
…11001111011110111
3102110201100210101212
410020320321323313
533100142234031
62012552312035
7215062150511
oct41070717367
912421323355
104444102391
1119806419a3
12a403a261b
1355a934bb1
14302318bb1
151b024b12b
hex108e39ef7

4444102391 has 8 divisors (see below), whose sum is σ = 4465645968. Its totient is φ = 4422600000.

The previous prime is 4444102373. The next prime is 4444102393. The reversal of 4444102391 is 1932014444.

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 4444102391 - 214 = 4444086007 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 (4444102393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218141 + ... + 237641.

It is an arithmetic number, because the mean of its divisors is an integer number (558205746).

Almost surely, 24444102391 is an apocalyptic number.

4444102391 is a deficient number, since it is larger than the sum of its proper divisors (21543577).

4444102391 is a wasteful number, since it uses less digits than its factorization.

4444102391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20593.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 4444102391 is about 66664.1012164718. The cubic root of 4444102391 is about 1644.0992029881.

The spelling of 4444102391 in words is "four billion, four hundred forty-four million, one hundred two thousand, three hundred ninety-one".

Divisors: 1 281 811 19501 227891 5479781 15815311 4444102391