Base | Representation |
---|---|
bin | 1111100000101… |
… | …11111000110111 |
3 | 100001211211211100 |
4 | 13300113320313 |
5 | 231302340041 |
6 | 20524541143 |
7 | 3140004210 |
oct | 760277067 |
9 | 301754740 |
10 | 130121271 |
11 | 674a5045 |
12 | 376b17b3 |
13 | 20c5ba47 |
14 | 133d2407 |
15 | b6546b6 |
hex | 7c17e37 |
130121271 has 12 divisors (see below), whose sum is σ = 214803472. Its totient is φ = 74354976.
The previous prime is 130121227. The next prime is 130121287. The reversal of 130121271 is 172121031.
It is a happy number.
It is not a de Polignac number, because 130121271 - 26 = 130121207 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 (130121071) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1032646 + ... + 1032771.
Almost surely, 2130121271 is an apocalyptic number.
130121271 is a deficient number, since it is larger than the sum of its proper divisors (84682201).
130121271 is a wasteful number, since it uses less digits than its factorization.
130121271 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2065430 (or 2065427 counting only the distinct ones).
The product of its (nonzero) digits is 84, while the sum is 18.
The square root of 130121271 is about 11407.0710964735. The cubic root of 130121271 is about 506.7371745617.
The spelling of 130121271 in words is "one hundred thirty million, one hundred twenty-one thousand, two hundred seventy-one".
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