Base | Representation |
---|---|
bin | 1111100000001… |
… | …10000111100001 |
3 | 100001201010222102 |
4 | 13300012013201 |
5 | 231243022411 |
6 | 20523220145 |
7 | 3136252043 |
oct | 760060741 |
9 | 301633872 |
10 | 130048481 |
11 | 67455392 |
12 | 37677655 |
13 | 20c34884 |
14 | 133b3a93 |
15 | b63cd3b |
hex | 7c061e1 |
130048481 has 4 divisors (see below), whose sum is σ = 130225200. Its totient is φ = 129871764.
The previous prime is 130048459. The next prime is 130048489. The reversal of 130048481 is 184840031.
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: 184840031 = 17 ⋅10872943.
It is a cyclic number.
It is not a de Polignac number, because 130048481 - 218 = 129786337 is a prime.
It is a super-2 number, since 2×1300484812 = 33825214820814722, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130048489) 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, 87251 + ... + 88728.
It is an arithmetic number, because the mean of its divisors is an integer number (32556300).
Almost surely, 2130048481 is an apocalyptic number.
It is an amenable number.
130048481 is a deficient number, since it is larger than the sum of its proper divisors (176719).
130048481 is an equidigital number, since it uses as much as digits as its factorization.
130048481 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 176718.
The product of its (nonzero) digits is 3072, while the sum is 29.
The square root of 130048481 is about 11403.8800853043. The cubic root of 130048481 is about 506.6426671362.
The spelling of 130048481 in words is "one hundred thirty million, forty-eight thousand, four hundred eighty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.066 sec. • engine limits •