Base | Representation |
---|---|
bin | 1111100000110… |
… | …01100110101101 |
3 | 100001212012110201 |
4 | 13300121212231 |
5 | 231303101201 |
6 | 20525033501 |
7 | 3140033542 |
oct | 760314655 |
9 | 301765421 |
10 | 130128301 |
11 | 674aa356 |
12 | 376b5891 |
13 | 20c61cc4 |
14 | 133d4bc9 |
15 | b656801 |
hex | 7c199ad |
130128301 has 8 divisors (see below), whose sum is σ = 133471800. Its totient is φ = 126792960.
The previous prime is 130128259. The next prime is 130128329. The reversal of 130128301 is 103821031.
It can be written as a sum of positive squares in 4 ways, for example, as 8555625 + 121572676 = 2925^2 + 11026^2 .
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 130128301 - 211 = 130126253 is a prime.
It is a super-2 number, since 2×1301283012 = 33866749442293202, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (130128601) 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, 42345 + ... + 45313.
It is an arithmetic number, because the mean of its divisors is an integer number (16683975).
Almost surely, 2130128301 is an apocalyptic number.
It is an amenable number.
130128301 is a deficient number, since it is larger than the sum of its proper divisors (3343499).
130128301 is a wasteful number, since it uses less digits than its factorization.
130128301 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4079.
The product of its (nonzero) digits is 144, while the sum is 19.
The square root of 130128301 is about 11407.3792345131. The cubic root of 130128301 is about 506.7463001468.
Adding to 130128301 its reverse (103821031), we get a palindrome (233949332).
The spelling of 130128301 in words is "one hundred thirty million, one hundred twenty-eight thousand, three hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.076 sec. • engine limits •