Base | Representation |
---|---|
bin | 1111100000001… |
… | …11010100100001 |
3 | 100001201101201221 |
4 | 13300013110201 |
5 | 231243202114 |
6 | 20523255041 |
7 | 3136302313 |
oct | 760072441 |
9 | 301641657 |
10 | 130053409 |
11 | 67459062 |
12 | 3767a481 |
13 | 20c36ba5 |
14 | 133b57b3 |
15 | b63e524 |
hex | 7c07521 |
130053409 has 4 divisors (see below), whose sum is σ = 133568404. Its totient is φ = 126538416.
The previous prime is 130053397. The next prime is 130053419. The reversal of 130053409 is 904350031.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 109830400 + 20223009 = 10480^2 + 4497^2 .
It is a cyclic number.
It is not a de Polignac number, because 130053409 - 219 = 129529121 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130053419) 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, 1757442 + ... + 1757515.
It is an arithmetic number, because the mean of its divisors is an integer number (33392101).
Almost surely, 2130053409 is an apocalyptic number.
It is an amenable number.
130053409 is a deficient number, since it is larger than the sum of its proper divisors (3514995).
130053409 is an equidigital number, since it uses as much as digits as its factorization.
130053409 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3514994.
The product of its (nonzero) digits is 1620, while the sum is 25.
The square root of 130053409 is about 11404.0961500682. The cubic root of 130053409 is about 506.6490665535.
The spelling of 130053409 in words is "one hundred thirty million, fifty-three thousand, four hundred nine".
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