Base | Representation |
---|---|
bin | 1111011111111… |
… | …11111100101101 |
3 | 100001122212022120 |
4 | 13233333330231 |
5 | 231241220323 |
6 | 20522503153 |
7 | 3136115265 |
oct | 757777455 |
9 | 301585276 |
10 | 130023213 |
11 | 67438401 |
12 | 37664ab9 |
13 | 20c26218 |
14 | 133a87a5 |
15 | b6355e3 |
hex | 7bfff2d |
130023213 has 8 divisors (see below), whose sum is σ = 182488800. Its totient is φ = 82119888.
The previous prime is 130023203. The next prime is 130023221. The reversal of 130023213 is 312320031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 130023213 - 25 = 130023181 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 130023192 and 130023201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130023203) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140498 + ... + 1140611.
It is an arithmetic number, because the mean of its divisors is an integer number (22811100).
Almost surely, 2130023213 is an apocalyptic number.
It is an amenable number.
130023213 is a deficient number, since it is larger than the sum of its proper divisors (52465587).
130023213 is a wasteful number, since it uses less digits than its factorization.
130023213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2281131.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 130023213 is about 11402.7721629435. The cubic root of 130023213 is about 506.6098519993.
Adding to 130023213 its reverse (312320031), we get a palindrome (442343244).
The spelling of 130023213 in words is "one hundred thirty million, twenty-three thousand, two hundred thirteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •