| Base | Representation |
|---|---|
| bin | 100111101011010… |
| … | …0001001101000000 |
| 3 | 10102210002012201010 |
| 4 | 1033112201031000 |
| 5 | 10211303200412 |
| 6 | 340034240520 |
| 7 | 44663614350 |
| oct | 11726411500 |
| 9 | 3383065633 |
| 10 | 1331303232 |
| 11 | 623538906 |
| 12 | 311a26140 |
| 13 | 182a781bc |
| 14 | c8b4cb60 |
| 15 | 7bd2533c |
| hex | 4f5a1340 |
1331303232 has 112 divisors (see below), whose sum is σ = 4164543360. Its totient is φ = 367245312.
The previous prime is 1331303231. The next prime is 1331303249. The reversal of 1331303232 is 2323031331.
It is a tau number, because it is divible by the number of its divisors (112).
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 = 1331303199 and 1331303208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1331303231) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21898 + ... + 56054.
Almost surely, 21331303232 is an apocalyptic number.
1331303232 is a gapful number since it is divisible by the number (12) 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 1331303232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2082271680).
1331303232 is an abundant number, since it is smaller than the sum of its proper divisors (2833240128).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1331303232 is a wasteful number, since it uses less digits than its factorization.
1331303232 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34208 (or 34198 counting only the distinct ones).
The product of its (nonzero) digits is 972, while the sum is 21.
The square root of 1331303232 is about 36487.0282703319. The cubic root of 1331303232 is about 1100.0835286433.
Adding to 1331303232 its reverse (2323031331), we get a palindrome (3654334563).
The spelling of 1331303232 in words is "one billion, three hundred thirty-one million, three hundred three thousand, two hundred thirty-two".
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