Base | Representation |
---|---|
bin | 1111100011001… |
… | …10010011001001 |
3 | 100002110011101112 |
4 | 13301212103021 |
5 | 231343124231 |
6 | 20535500105 |
7 | 3142512443 |
oct | 761462311 |
9 | 302404345 |
10 | 130442441 |
11 | 676a4378 |
12 | 37827635 |
13 | 21041c9c |
14 | 13477493 |
15 | b6b992b |
hex | 7c664c9 |
130442441 has 4 divisors (see below), whose sum is σ = 130962384. Its totient is φ = 129922500.
The previous prime is 130442413. The next prime is 130442447. The reversal of 130442441 is 144244031.
It is a happy number.
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.
It is a cyclic number.
It is not a de Polignac number, because 130442441 - 226 = 63333577 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130442447) 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, 259595 + ... + 260096.
It is an arithmetic number, because the mean of its divisors is an integer number (32740596).
Almost surely, 2130442441 is an apocalyptic number.
It is an amenable number.
130442441 is a deficient number, since it is larger than the sum of its proper divisors (519943).
130442441 is an equidigital number, since it uses as much as digits as its factorization.
130442441 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 519942.
The product of its (nonzero) digits is 1536, while the sum is 23.
The square root of 130442441 is about 11421.1400919523. The cubic root of 130442441 is about 507.1537476544.
Adding to 130442441 its reverse (144244031), we get a palindrome (274686472).
The spelling of 130442441 in words is "one hundred thirty million, four hundred forty-two thousand, four hundred forty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •