Base | Representation |
---|---|
bin | 1111100101001… |
… | …10100000001111 |
3 | 100002221112010121 |
4 | 13302212200033 |
5 | 231430033143 |
6 | 20545245411 |
7 | 3144656242 |
oct | 762464017 |
9 | 302845117 |
10 | 130705423 |
11 | 67863a12 |
12 | 37933867 |
13 | 211048b4 |
14 | 13505259 |
15 | b71c7ed |
hex | 7ca680f |
130705423 has 8 divisors (see below), whose sum is σ = 137361488. Its totient is φ = 124213824.
The previous prime is 130705411. The next prime is 130705439. The reversal of 130705423 is 324507031.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 130705423 - 29 = 130704911 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 (130705403) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39486 + ... + 42667.
It is an arithmetic number, because the mean of its divisors is an integer number (17170186).
Almost surely, 2130705423 is an apocalyptic number.
130705423 is a deficient number, since it is larger than the sum of its proper divisors (6656065).
130705423 is an equidigital number, since it uses as much as digits as its factorization.
130705423 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 82233.
The product of its (nonzero) digits is 2520, while the sum is 25.
The square root of 130705423 is about 11432.6472437489. The cubic root of 130705423 is about 507.4943391993.
The spelling of 130705423 in words is "one hundred thirty million, seven hundred five thousand, four hundred twenty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •