Base | Representation |
---|---|
bin | 111100101000111000… |
… | …1101111100101001000 |
3 | 110110010022210212220100 |
4 | 1321101301233211020 |
5 | 4113143034411240 |
6 | 135453412125400 |
7 | 12256666231026 |
oct | 1712161574510 |
9 | 413108725810 |
10 | 130221013320 |
11 | 50254404772 |
12 | 212a2906860 |
13 | c383908548 |
14 | 643499b716 |
15 | 35c246de30 |
hex | 1e51c6f948 |
130221013320 has 48 divisors (see below), whose sum is σ = 423218294460. Its totient is φ = 34725603456.
The previous prime is 130221013289. The next prime is 130221013333. The reversal of 130221013320 is 23310122031.
130221013320 is a `hidden beast` number, since 1 + 302 + 210 + 133 + 20 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 119385452484 + 10835560836 = 345522^2 + 104094^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a junction number, because it is equal to n+sod(n) for n = 130221013293 and 130221013302.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180862159 + ... + 180862878.
Almost surely, 2130221013320 is an apocalyptic number.
130221013320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
130221013320 is an abundant number, since it is smaller than the sum of its proper divisors (292997281140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
130221013320 is a wasteful number, since it uses less digits than its factorization.
130221013320 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 361725054 (or 361725047 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 130221013320 its reverse (23310122031), we get a palindrome (153531135351).
The spelling of 130221013320 in words is "one hundred thirty billion, two hundred twenty-one million, thirteen thousand, three hundred twenty".
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