| Base | Representation |
|---|---|
| bin | 100100101101111… |
| … | …0000010000100000 |
| 3 | 10011212020201011221 |
| 4 | 1021123300100200 |
| 5 | 10010343343240 |
| 6 | 322130144424 |
| 7 | 42346634440 |
| oct | 11133602040 |
| 9 | 3155221157 |
| 10 | 1232012320 |
| 11 | 582491100 |
| 12 | 2a4722114 |
| 13 | 168322396 |
| 14 | b98a4120 |
| 15 | 73260a4a |
| hex | 496f0420 |
1232012320 has 144 divisors (see below), whose sum is σ = 3656729664. Its totient is φ = 383961600.
The previous prime is 1232012291. The next prime is 1232012333. The reversal of 1232012320 is 232102321.
It is a Harshad number since it is a multiple of its sum of digits (16).
It is a junction number, because it is equal to n+sod(n) for n = 1232012294 and 1232012303.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130975 + ... + 140065.
It is an arithmetic number, because the mean of its divisors is an integer number (25393956).
Almost surely, 21232012320 is an apocalyptic number.
1232012320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1232012320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1828364832).
1232012320 is an abundant number, since it is smaller than the sum of its proper divisors (2424717344).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1232012320 is a wasteful number, since it uses less digits than its factorization.
1232012320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9135 (or 9116 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 1232012320 is about 35100.0330484175. The cubic root of 1232012320 is about 1072.0252555868.
Adding to 1232012320 its reverse (232102321), we get a palindrome (1464114641).
Subtracting from 1232012320 its reverse (232102321), we obtain a palindrome (999909999).
It can be divided in two parts, 123201 and 2320, that added together give a palindrome (125521).
The spelling of 1232012320 in words is "one billion, two hundred thirty-two million, twelve thousand, three hundred twenty".
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