Base | Representation |
---|---|
bin | 1111011111111… |
… | …11011110110111 |
3 | 100001122202200211 |
4 | 13233333132313 |
5 | 231241140203 |
6 | 20522450251 |
7 | 3136106566 |
oct | 757773667 |
9 | 301582624 |
10 | 130021303 |
11 | 67436a25 |
12 | 37663987 |
13 | 20c253a9 |
14 | 133a7bdd |
15 | b634c6d |
hex | 7bff7b7 |
130021303 has 4 divisors (see below), whose sum is σ = 131172048. Its totient is φ = 128870560.
The previous prime is 130021301. The next prime is 130021337. The reversal of 130021303 is 303120031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303120031 = 379 ⋅799789.
It is a cyclic number.
It is not a de Polignac number, because 130021303 - 21 = 130021301 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 (130021301) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 575203 + ... + 575428.
It is an arithmetic number, because the mean of its divisors is an integer number (32793012).
Almost surely, 2130021303 is an apocalyptic number.
130021303 is a deficient number, since it is larger than the sum of its proper divisors (1150745).
130021303 is a wasteful number, since it uses less digits than its factorization.
130021303 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1150744.
The product of its (nonzero) digits is 54, while the sum is 13.
The square root of 130021303 is about 11402.6884110722. The cubic root of 130021303 is about 506.6073713408.
Adding to 130021303 its reverse (303120031), we get a palindrome (433141334).
The spelling of 130021303 in words is "one hundred thirty million, twenty-one thousand, three hundred three".
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