Base | Representation |
---|---|
bin | 100100011011011… |
… | …0111001100110111 |
3 | 10011012001101012212 |
4 | 1020312313030313 |
5 | 10000404411211 |
6 | 321143004035 |
7 | 42201505433 |
oct | 11066671467 |
9 | 3135041185 |
10 | 1222341431 |
11 | 577a86233 |
12 | 2a143961b |
13 | 16631756c |
14 | b84a79c3 |
15 | 724a038b |
hex | 48db7337 |
1222341431 has 2 divisors, whose sum is σ = 1222341432. Its totient is φ = 1222341430.
The previous prime is 1222341427. The next prime is 1222341457. The reversal of 1222341431 is 1341432221.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1222341431 - 22 = 1222341427 is a prime.
It is a super-2 number, since 2×12223414312 = 2988237147878255522, which contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 1222341397 and 1222341406.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1222341031) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611170715 + 611170716.
It is an arithmetic number, because the mean of its divisors is an integer number (611170716).
Almost surely, 21222341431 is an apocalyptic number.
1222341431 is a deficient number, since it is larger than the sum of its proper divisors (1).
1222341431 is an equidigital number, since it uses as much as digits as its factorization.
1222341431 is an evil number, because the sum of its binary digits is even.
The product of its digits is 1152, while the sum is 23.
The square root of 1222341431 is about 34961.9998140839. Note that the first 3 decimals coincide. The cubic root of 1222341431 is about 1069.2128694365.
Adding to 1222341431 its reverse (1341432221), we get a palindrome (2563773652).
The spelling of 1222341431 in words is "one billion, two hundred twenty-two million, three hundred forty-one thousand, four hundred thirty-one".
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