Base | Representation |
---|---|
bin | 1011101000101010… |
… | …0011110010110111 |
3 | 22001200002121121110 |
4 | 2322022203302313 |
5 | 22344033031411 |
6 | 1233531450103 |
7 | 140253604020 |
oct | 27212436267 |
9 | 8050077543 |
10 | 3123330231 |
11 | 136304725a |
12 | 731bb6933 |
13 | 3aa1061c8 |
14 | 218b4bc47 |
15 | 1343062a6 |
hex | ba2a3cb7 |
3123330231 has 16 divisors (see below), whose sum is σ = 4761909504. Its totient is φ = 1783804224.
The previous prime is 3123330229. The next prime is 3123330263. The reversal of 3123330231 is 1320333213.
It is not a de Polignac number, because 3123330231 - 21 = 3123330229 is a prime.
It is a super-2 number, since 2×31233302312 = 19510383463757026722, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (21).
It is a junction number, because it is equal to n+sod(n) for n = 3123330198 and 3123330207.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3123330281) 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, 1300 + ... + 79046.
It is an arithmetic number, because the mean of its divisors is an integer number (297619344).
Almost surely, 23123330231 is an apocalyptic number.
3123330231 is a deficient number, since it is larger than the sum of its proper divisors (1638579273).
3123330231 is a wasteful number, since it uses less digits than its factorization.
3123330231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 79670.
The product of its (nonzero) digits is 972, while the sum is 21.
The square root of 3123330231 is about 55886.7625739763. The cubic root of 3123330231 is about 1461.7484262245.
Adding to 3123330231 its reverse (1320333213), we get a palindrome (4443663444).
The spelling of 3123330231 in words is "three billion, one hundred twenty-three million, three hundred thirty thousand, two hundred thirty-one".
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