Base | Representation |
---|---|
bin | 1111100000111… |
… | …01100011000000 |
3 | 100001220000121202 |
4 | 13300131203000 |
5 | 231304110243 |
6 | 20525240332 |
7 | 3140131610 |
oct | 760354300 |
9 | 301800552 |
10 | 130144448 |
11 | 675104a5 |
12 | 377030a8 |
13 | 20c69465 |
14 | 133daa40 |
15 | b65b4b8 |
hex | 7c1d8c0 |
130144448 has 56 divisors (see below), whose sum is σ = 304702464. Its totient is φ = 53971200.
The previous prime is 130144423. The next prime is 130144451. The reversal of 130144448 is 844441031.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (56).
It is a self number, because there is not a number n which added to its sum of digits gives 130144448.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9203 + ... + 18573.
Almost surely, 2130144448 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 130144448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152351232).
130144448 is an abundant number, since it is smaller than the sum of its proper divisors (174558016).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130144448 is an equidigital number, since it uses as much as digits as its factorization.
130144448 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9421 (or 9411 counting only the distinct ones).
The product of its (nonzero) digits is 6144, while the sum is 29.
The square root of 130144448 is about 11408.0869561903. The cubic root of 130144448 is about 506.7672591901.
Adding to 130144448 its reverse (844441031), we get a palindrome (974585479).
The spelling of 130144448 in words is "one hundred thirty million, one hundred forty-four thousand, four hundred forty-eight".
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