Base | Representation |
---|---|
bin | 1111100010011… |
… | …11001101110001 |
3 | 100002021100200121 |
4 | 13301033031301 |
5 | 231332113024 |
6 | 20533450241 |
7 | 3141640000 |
oct | 761171561 |
9 | 302240617 |
10 | 130347889 |
11 | 6763a331 |
12 | 377a0981 |
13 | 2100ac39 |
14 | 13450c37 |
15 | b69b8e4 |
hex | 7c4f371 |
130347889 has 15 divisors (see below), whose sum is σ = 152718923. Its totient is φ = 111247248.
The previous prime is 130347883. The next prime is 130347907. The reversal of 130347889 is 988743031.
It is a happy number.
The square root of 130347889 is 11417.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 26471025 + 103876864 = 5145^2 + 10192^2 .
It is not a de Polignac number, because 130347889 - 215 = 130315121 is a prime.
It is not an unprimeable number, because it can be changed into a prime (130347883) by changing a digit.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 559317 + ... + 559549.
Almost surely, 2130347889 is an apocalyptic number.
130347889 is the 11417-th square number.
130347889 is the 5709-th centered octagonal number.
It is an amenable number.
130347889 is a deficient number, since it is larger than the sum of its proper divisors (22371034).
130347889 is an frugal number, since it uses more digits than its factorization.
130347889 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 494 (or 240 counting only the distinct ones).
The product of its (nonzero) digits is 145152, while the sum is 43.
The cubic root of 130347889 is about 507.0311802046.
The spelling of 130347889 in words is "one hundred thirty million, three hundred forty-seven thousand, eight hundred eighty-nine".
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