Base | Representation |
---|---|
bin | 1111100001011… |
… | …10001011000111 |
3 | 100002000111001002 |
4 | 13300232023013 |
5 | 231313300201 |
6 | 20530523515 |
7 | 3140534300 |
oct | 760561307 |
9 | 302014032 |
10 | 130212551 |
11 | 67557687 |
12 | 3773659b |
13 | 20c91461 |
14 | 134177a7 |
15 | b67176b |
hex | 7c2e2c7 |
130212551 has 6 divisors (see below), whose sum is σ = 151471800. Its totient is φ = 111610716.
The previous prime is 130212547. The next prime is 130212601. The reversal of 130212551 is 155212031.
It is a happy number.
130212551 is nontrivially palindromic in base 15 and base 16.
It is not a de Polignac number, because 130212551 - 22 = 130212547 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130212521) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1328651 + ... + 1328748.
It is an arithmetic number, because the mean of its divisors is an integer number (25245300).
Almost surely, 2130212551 is an apocalyptic number.
130212551 is a deficient number, since it is larger than the sum of its proper divisors (21259249).
130212551 is an equidigital number, since it uses as much as digits as its factorization.
130212551 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2657413 (or 2657406 counting only the distinct ones).
The product of its (nonzero) digits is 300, while the sum is 20.
The square root of 130212551 is about 11411.0714220883. The cubic root of 130212551 is about 506.8556388148.
Adding to 130212551 its reverse (155212031), we get a palindrome (285424582).
The spelling of 130212551 in words is "one hundred thirty million, two hundred twelve thousand, five hundred fifty-one".
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