Base | Representation |
---|---|
bin | 101011000010101… |
… | …0000110110111111 |
3 | 10201122112222212122 |
4 | 1112011100312333 |
5 | 10424210022401 |
6 | 355150353155 |
7 | 50534445650 |
oct | 12605206677 |
9 | 3648488778 |
10 | 1444220351 |
11 | 681252142 |
12 | 3437bb7bb |
13 | 1a0292272 |
14 | d9b43527 |
15 | 86bcc21b |
hex | 56150dbf |
1444220351 has 8 divisors (see below), whose sum is σ = 1659091104. Its totient is φ = 1231488000.
The previous prime is 1444220341. The next prime is 1444220353. The reversal of 1444220351 is 1530224441.
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 1444220351 - 26 = 1444220287 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 1444220351.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1444220353) 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, 533150 + ... + 535851.
It is an arithmetic number, because the mean of its divisors is an integer number (207386388).
Almost surely, 21444220351 is an apocalyptic number.
1444220351 is a deficient number, since it is larger than the sum of its proper divisors (214870753).
1444220351 is a wasteful number, since it uses less digits than its factorization.
1444220351 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1069201.
The product of its (nonzero) digits is 3840, while the sum is 26.
The square root of 1444220351 is about 38002.8992446629. The cubic root of 1444220351 is about 1130.3453537568.
Adding to 1444220351 its reverse (1530224441), we get a palindrome (2974444792).
The spelling of 1444220351 in words is "one billion, four hundred forty-four million, two hundred twenty thousand, three hundred fifty-one".
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