Base | Representation |
---|---|
bin | 11000011100010001… |
… | …11000101011100110 |
3 | 1020212111120100221200 |
4 | 30032020320223212 |
5 | 203333230042410 |
6 | 10010032223330 |
7 | 643115053653 |
oct | 141610705346 |
9 | 36774510850 |
10 | 13122112230 |
11 | 56240aa157 |
12 | 266269ab46 |
13 | 1311788166 |
14 | 8c6a74c2a |
15 | 51c0233c0 |
hex | 30e238ae6 |
13122112230 has 24 divisors (see below), whose sum is σ = 34117492032. Its totient is φ = 3499229904.
The previous prime is 13122112189. The next prime is 13122112249. The reversal of 13122112230 is 3221122131.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72900534 + ... + 72900713.
It is an arithmetic number, because the mean of its divisors is an integer number (1421562168).
Almost surely, 213122112230 is an apocalyptic number.
13122112230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
13122112230 is an abundant number, since it is smaller than the sum of its proper divisors (20995379802).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13122112230 is a wasteful number, since it uses less digits than its factorization.
13122112230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 145801260 (or 145801257 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
Adding to 13122112230 its reverse (3221122131), we get a palindrome (16343234361).
Subtracting from 13122112230 its reverse (3221122131), we obtain a palindrome (9900990099).
The spelling of 13122112230 in words is "thirteen billion, one hundred twenty-two million, one hundred twelve thousand, two hundred thirty".
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