Base | Representation |
---|---|
bin | 10001110010000111011… |
… | …100010000101001001111 |
3 | 11022211022021120210022110 |
4 | 101302013130100221033 |
5 | 130010221004410211 |
6 | 2333222051315103 |
7 | 154201236326466 |
oct | 21620734205117 |
9 | 4284267523273 |
10 | 1222043044431 |
11 | 4312a1492690 |
12 | 178a0b8aba93 |
13 | 8b31332b171 |
14 | 4320bcb19dd |
15 | 21bc4ebcea6 |
hex | 11c87710a4f |
1222043044431 has 16 divisors (see below), whose sum is σ = 1794774608640. Its totient is φ = 733441542720.
The previous prime is 1222043044423. The next prime is 1222043044511. The reversal of 1222043044431 is 1344403402221.
It is not a de Polignac number, because 1222043044431 - 23 = 1222043044423 is a prime.
It is a super-2 number, since 2×12220430444312 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1222043044231) 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 in 15 ways as a sum of consecutive naturals, for example, 179761686 + ... + 179768483.
It is an arithmetic number, because the mean of its divisors is an integer number (112173413040).
Almost surely, 21222043044431 is an apocalyptic number.
1222043044431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
1222043044431 is a deficient number, since it is larger than the sum of its proper divisors (572731564209).
1222043044431 is a wasteful number, since it uses less digits than its factorization.
1222043044431 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 359530286.
The product of its (nonzero) digits is 18432, while the sum is 30.
Adding to 1222043044431 its reverse (1344403402221), we get a palindrome (2566446446652).
The spelling of 1222043044431 in words is "one trillion, two hundred twenty-two billion, forty-three million, forty-four thousand, four hundred thirty-one".
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