Base | Representation |
---|---|
bin | 101010111111100… |
… | …1001011110000111 |
3 | 10201112112112210112 |
4 | 1111333021132013 |
5 | 10423302222343 |
6 | 355052143235 |
7 | 50515021055 |
oct | 12577113607 |
9 | 3645475715 |
10 | 1442617223 |
11 | 680357743 |
12 | 343167b1b |
13 | 19cb50678 |
14 | d98471d5 |
15 | 869b2218 |
hex | 55fc9787 |
1442617223 has 2 divisors, whose sum is σ = 1442617224. Its totient is φ = 1442617222.
The previous prime is 1442617217. The next prime is 1442617303. The reversal of 1442617223 is 3227162441.
It is a weak prime.
It is an emirp because it is prime and its reverse (3227162441) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1442617223 - 220 = 1441568647 is a prime.
It is a super-2 number, since 2×14426172232 = 4162288904192463458, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 1442617223.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1442610223) 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 as a sum of consecutive naturals, namely, 721308611 + 721308612.
It is an arithmetic number, because the mean of its divisors is an integer number (721308612).
Almost surely, 21442617223 is an apocalyptic number.
1442617223 is a deficient number, since it is larger than the sum of its proper divisors (1).
1442617223 is an equidigital number, since it uses as much as digits as its factorization.
1442617223 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 16128, while the sum is 32.
The square root of 1442617223 is about 37981.8012079469. The cubic root of 1442617223 is about 1129.9269598024.
Adding to 1442617223 its reverse (3227162441), we get a palindrome (4669779664).
The spelling of 1442617223 in words is "one billion, four hundred forty-two million, six hundred seventeen thousand, two hundred twenty-three".
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