Base | Representation |
---|---|
bin | 10111001101110… |
… | …010000101000000 |
3 | 1000010220002102001 |
4 | 113031302011000 |
5 | 1244202121320 |
6 | 102352033344 |
7 | 12436413220 |
oct | 2715620500 |
9 | 1003802361 |
10 | 389488960 |
11 | 18a946903 |
12 | aa532854 |
13 | 62901253 |
14 | 39a2a080 |
15 | 242d920a |
hex | 17372140 |
389488960 has 224 divisors, whose sum is σ = 1123614720. Its totient is φ = 125798400.
The previous prime is 389488949. The next prime is 389488963. The reversal of 389488960 is 69884983.
It is a tau number, because it is divible by the number of its divisors (224).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (389488963) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4930201 + ... + 4930279.
Almost surely, 2389488960 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 389488960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561807360).
389488960 is an abundant number, since it is smaller than the sum of its proper divisors (734125760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
389488960 is a wasteful number, since it uses less digits than its factorization.
389488960 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 205 (or 195 counting only the distinct ones).
The product of its (nonzero) digits is 2985984, while the sum is 55.
The square root of 389488960 is about 19735.4746585938. The cubic root of 389488960 is about 730.2950955564.
The spelling of 389488960 in words is "three hundred eighty-nine million, four hundred eighty-eight thousand, nine hundred sixty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.084 sec. • engine limits •