Base | Representation |
---|---|
bin | 1111100011100… |
… | …01000000110001 |
3 | 100002112101120201 |
4 | 13301301000301 |
5 | 231401030241 |
6 | 20540435201 |
7 | 3143054410 |
oct | 761610061 |
9 | 302471521 |
10 | 130486321 |
11 | 67724339 |
12 | 37848b01 |
13 | 21058c54 |
14 | 13489477 |
15 | b6c7931 |
hex | 7c71031 |
130486321 has 4 divisors (see below), whose sum is σ = 149127232. Its totient is φ = 111845412.
The previous prime is 130486297. The next prime is 130486327. The reversal of 130486321 is 123684031.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123684031 = 2753 ⋅44927.
It is not a de Polignac number, because 130486321 - 211 = 130484273 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 130486321.
It is not an unprimeable number, because it can be changed into a prime (130486327) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9320445 + ... + 9320458.
It is an arithmetic number, because the mean of its divisors is an integer number (37281808).
Almost surely, 2130486321 is an apocalyptic number.
It is an amenable number.
130486321 is a deficient number, since it is larger than the sum of its proper divisors (18640911).
130486321 is an equidigital number, since it uses as much as digits as its factorization.
130486321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18640910.
The product of its (nonzero) digits is 3456, while the sum is 28.
The square root of 130486321 is about 11423.0609295407. The cubic root of 130486321 is about 507.2106090342.
The spelling of 130486321 in words is "one hundred thirty million, four hundred eighty-six thousand, three hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.069 sec. • engine limits •