Base | Representation |
---|---|
bin | 1111100001100… |
… | …00101111001100 |
3 | 100002001000110000 |
4 | 13300300233030 |
5 | 231314114202 |
6 | 20531044300 |
7 | 3140610021 |
oct | 760605714 |
9 | 302030400 |
10 | 130223052 |
11 | 67564563 |
12 | 37740690 |
13 | 20c9617b |
14 | 1341b548 |
15 | b67491c |
hex | 7c30bcc |
130223052 has 60 divisors (see below), whose sum is σ = 348767496. Its totient is φ = 42344640.
The previous prime is 130223029. The next prime is 130223059. The reversal of 130223052 is 250322031.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130223059) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8383 + ... + 18185.
Almost surely, 2130223052 is an apocalyptic number.
130223052 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 130223052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174383748).
130223052 is an abundant number, since it is smaller than the sum of its proper divisors (218544444).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130223052 is a wasteful number, since it uses less digits than its factorization.
130223052 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9860 (or 9849 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 130223052 is about 11411.5315361261. The cubic root of 130223052 is about 506.8692635844.
Adding to 130223052 its reverse (250322031), we get a palindrome (380545083).
The spelling of 130223052 in words is "one hundred thirty million, two hundred twenty-three thousand, fifty-two".
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