Base | Representation |
---|---|
bin | 101010111110110… |
… | …0111000101001001 |
3 | 10201111210001222101 |
4 | 1111331213011021 |
5 | 10423201323332 |
6 | 355035353401 |
7 | 50511422113 |
oct | 12575470511 |
9 | 3644701871 |
10 | 1442214217 |
11 | 680101984 |
12 | 342bb2861 |
13 | 19ca3c0c2 |
14 | d97803b3 |
15 | 86932ae7 |
hex | 55f67149 |
1442214217 has 8 divisors (see below), whose sum is σ = 1470385224. Its totient is φ = 1414078848.
The previous prime is 1442214211. The next prime is 1442214229. The reversal of 1442214217 is 7124122441.
It can be written as a sum of positive squares in 4 ways, for example, as 105288121 + 1336926096 = 10261^2 + 36564^2 .
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 1442214217 - 211 = 1442212169 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1442214211) 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, 81693 + ... + 97765.
It is an arithmetic number, because the mean of its divisors is an integer number (183798153).
Almost surely, 21442214217 is an apocalyptic number.
It is an amenable number.
1442214217 is a deficient number, since it is larger than the sum of its proper divisors (28171007).
1442214217 is a wasteful number, since it uses less digits than its factorization.
1442214217 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17819.
The product of its digits is 3584, while the sum is 28.
The square root of 1442214217 is about 37976.4955860859. The cubic root of 1442214217 is about 1129.8217321308.
Adding to 1442214217 its reverse (7124122441), we get a palindrome (8566336658).
The spelling of 1442214217 in words is "one billion, four hundred forty-two million, two hundred fourteen thousand, two hundred seventeen".
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