Base | Representation |
---|---|
bin | 101011000010101… |
… | …0110000000010111 |
3 | 10201122121001210101 |
4 | 1112011112000113 |
5 | 10424211211211 |
6 | 355151034531 |
7 | 50534564263 |
oct | 12605260027 |
9 | 3648531711 |
10 | 1444241431 |
11 | 681266a66 |
12 | 34380ba47 |
13 | 1a029ba39 |
14 | d9b4b0a3 |
15 | 86bd35c1 |
hex | 56156017 |
1444241431 has 4 divisors (see below), whose sum is σ = 1444628592. Its totient is φ = 1443854272.
The previous prime is 1444241411. The next prime is 1444241483. The reversal of 1444241431 is 1341424441.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1444241431 - 27 = 1444241303 is a prime.
It is a super-2 number, since 2×14442414312 = 4171666622033855522, which contains 22 as substring.
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 1444241431.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1444241411) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187930 + ... + 195463.
It is an arithmetic number, because the mean of its divisors is an integer number (361157148).
Almost surely, 21444241431 is an apocalyptic number.
1444241431 is a deficient number, since it is larger than the sum of its proper divisors (387161).
1444241431 is an equidigital number, since it uses as much as digits as its factorization.
1444241431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 387160.
The product of its digits is 6144, while the sum is 28.
The square root of 1444241431 is about 38003.1765909114. The cubic root of 1444241431 is about 1130.3508532786.
Adding to 1444241431 its reverse (1341424441), we get a palindrome (2785665872).
The spelling of 1444241431 in words is "one billion, four hundred forty-four million, two hundred forty-one thousand, four hundred thirty-one".
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