Base | Representation |
---|---|
bin | 1111011111111… |
… | …11001010100001 |
3 | 100001122200220121 |
4 | 13233333022201 |
5 | 231241120001 |
6 | 20522440241 |
7 | 3136103026 |
oct | 757771241 |
9 | 301580817 |
10 | 130020001 |
11 | 67435a51 |
12 | 37663081 |
13 | 20c24917 |
14 | 133a754d |
15 | b6346a1 |
hex | 7bff2a1 |
130020001 has 8 divisors (see below), whose sum is σ = 132960384. Its totient is φ = 127086960.
The previous prime is 130019977. The next prime is 130020013. The reversal of 130020001 is 100020031.
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 130020001 - 25 = 130019969 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (130020031) 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, 50106 + ... + 52636.
It is an arithmetic number, because the mean of its divisors is an integer number (16620048).
Almost surely, 2130020001 is an apocalyptic number.
It is an amenable number.
130020001 is a deficient number, since it is larger than the sum of its proper divisors (2940383).
130020001 is a wasteful number, since it uses less digits than its factorization.
130020001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3671.
The product of its (nonzero) digits is 6, while the sum is 7.
The square root of 130020001 is about 11402.6313191298. The cubic root of 130020001 is about 506.6056803230.
Adding to 130020001 its reverse (100020031), we get a palindrome (230040032).
The spelling of 130020001 in words is "one hundred thirty million, twenty thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •