Base | Representation |
---|---|
bin | 1101011101010111111… |
… | …0101011011110010101 |
3 | 211002211100022212010112 |
4 | 3113111332223132111 |
5 | 12242021122312233 |
6 | 254120020332405 |
7 | 22463633102630 |
oct | 3272576533625 |
9 | 732740285115 |
10 | 231223244693 |
11 | 8a074548061 |
12 | 38990244105 |
13 | 18a5bc569ac |
14 | b296b8ac17 |
15 | 603467b048 |
hex | 35d5fab795 |
231223244693 has 16 divisors (see below), whose sum is σ = 266064470400. Its totient is φ = 196834712256.
The previous prime is 231223244689. The next prime is 231223244711. The reversal of 231223244693 is 396442322132.
It is a happy number.
It is not a de Polignac number, because 231223244693 - 22 = 231223244689 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 231223244693.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (231223247693) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14555471 + ... + 14571347.
It is an arithmetic number, because the mean of its divisors is an integer number (16629029400).
Almost surely, 2231223244693 is an apocalyptic number.
It is an amenable number.
231223244693 is a deficient number, since it is larger than the sum of its proper divisors (34841225707).
231223244693 is a wasteful number, since it uses less digits than its factorization.
231223244693 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 29996.
The product of its digits is 373248, while the sum is 41.
The spelling of 231223244693 in words is "two hundred thirty-one billion, two hundred twenty-three million, two hundred forty-four thousand, six hundred ninety-three".
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