Base | Representation |
---|---|
bin | 10100100101111110… |
… | …101100110101001111 |
3 | 2010002000200111210020 |
4 | 110211332230311033 |
5 | 330241134430111 |
6 | 14054053313223 |
7 | 1411646103600 |
oct | 244576546517 |
9 | 63060614706 |
10 | 22112030031 |
11 | 9417734493 |
12 | 4351335813 |
13 | 2115118350 |
14 | 10da9c3da7 |
15 | 8963ac906 |
hex | 525facd4f |
22112030031 has 48 divisors (see below), whose sum is σ = 36956120544. Its totient is φ = 11656624896.
The previous prime is 22112030011. The next prime is 22112030069. The reversal of 22112030031 is 13003021122.
It is not a de Polignac number, because 22112030031 - 225 = 22078475599 is a prime.
It is a super-2 number, since 2×221120300312 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (22112030011) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6214705 + ... + 6218261.
It is an arithmetic number, because the mean of its divisors is an integer number (769919178).
Almost surely, 222112030031 is an apocalyptic number.
22112030031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
22112030031 is a deficient number, since it is larger than the sum of its proper divisors (14844090513).
22112030031 is a wasteful number, since it uses less digits than its factorization.
22112030031 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6840 (or 6833 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 22112030031 its reverse (13003021122), we get a palindrome (35115051153).
The spelling of 22112030031 in words is "twenty-two billion, one hundred twelve million, thirty thousand, thirty-one".
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