| Base | Representation |
|---|---|
| bin | 100111101000001… |
| … | …0110001101100000 |
| 3 | 10102200001000101100 |
| 4 | 1033100112031200 |
| 5 | 10210344412334 |
| 6 | 335535434400 |
| 7 | 44644065441 |
| oct | 11720261540 |
| 9 | 3380030340 |
| 10 | 1329685344 |
| 11 | 622633309 |
| 12 | 311385a00 |
| 13 | 18262c980 |
| 14 | c884b2c8 |
| 15 | 7bb05c99 |
| hex | 4f416360 |
1329685344 has 144 divisors (see below), whose sum is σ = 4086482400. Its totient is φ = 407697408.
The previous prime is 1329685337. The next prime is 1329685349. The reversal of 1329685344 is 4435869231.
1329685344 is a `hidden beast` number, since 13 + 296 + 8 + 5 + 344 = 666.
It is a tau number, because it is divible by the number of its divisors (144).
It is a super-2 number, since 2×13296853442 = 3536126228096796672, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 1329685344.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1329685349) 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 23 ways as a sum of consecutive naturals, for example, 1643212 + ... + 1644020.
It is an arithmetic number, because the mean of its divisors is an integer number (28378350).
Almost surely, 21329685344 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1329685344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2043241200).
1329685344 is an abundant number, since it is smaller than the sum of its proper divisors (2756797056).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1329685344 is a wasteful number, since it uses less digits than its factorization.
1329685344 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1277 (or 1266 counting only the distinct ones).
The product of its digits is 622080, while the sum is 45.
The square root of 1329685344 is about 36464.8508018338. The cubic root of 1329685344 is about 1099.6377165082.
The spelling of 1329685344 in words is "one billion, three hundred twenty-nine million, six hundred eighty-five thousand, three hundred forty-four".
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