Base | Representation |
---|---|
bin | 11000011100010011… |
… | …01001100000100110 |
3 | 1020212111221112022002 |
4 | 30032021221200212 |
5 | 203333302442410 |
6 | 10010040405302 |
7 | 643116546026 |
oct | 141611514046 |
9 | 36774845262 |
10 | 13122312230 |
11 | 5624226445 |
12 | 2662776832 |
13 | 13118281c1 |
14 | 8c6ac7a86 |
15 | 51c0627a5 |
hex | 30e269826 |
13122312230 has 32 divisors (see below), whose sum is σ = 23853892608. Its totient is φ = 5197212000.
The previous prime is 13122312227. The next prime is 13122312233. The reversal of 13122312230 is 3221322131.
It is an interprime number because it is at equal distance from previous prime (13122312227) and next prime (13122312233).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13122312233) 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, 455639 + ... + 483581.
It is an arithmetic number, because the mean of its divisors is an integer number (745434144).
Almost surely, 213122312230 is an apocalyptic number.
13122312230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13122312230 is a deficient number, since it is larger than the sum of its proper divisors (10731580378).
13122312230 is a wasteful number, since it uses less digits than its factorization.
13122312230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 28412.
The product of its (nonzero) digits is 432, while the sum is 20.
Adding to 13122312230 its reverse (3221322131), we get a palindrome (16343634361).
Subtracting from 13122312230 its reverse (3221322131), we obtain a palindrome (9900990099).
The spelling of 13122312230 in words is "thirteen billion, one hundred twenty-two million, three hundred twelve thousand, two hundred thirty".
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