Base | Representation |
---|---|
bin | 1111100010000… |
… | …01001000011101 |
3 | 100002011102120011 |
4 | 13301001020131 |
5 | 231323241310 |
6 | 20532323221 |
7 | 3141306553 |
oct | 761011035 |
9 | 302142504 |
10 | 130290205 |
11 | 675aaa61 |
12 | 37773511 |
13 | 20cba8c6 |
14 | 13437bd3 |
15 | b68978a |
hex | 7c4121d |
130290205 has 8 divisors (see below), whose sum is σ = 158911704. Its totient is φ = 102523200.
The previous prime is 130290191. The next prime is 130290217. The reversal of 130290205 is 502092031.
It can be written as a sum of positive squares in 4 ways, for example, as 8982009 + 121308196 = 2997^2 + 11014^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-130290205 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213286 + ... + 213895.
It is an arithmetic number, because the mean of its divisors is an integer number (19863963).
Almost surely, 2130290205 is an apocalyptic number.
It is an amenable number.
130290205 is a deficient number, since it is larger than the sum of its proper divisors (28621499).
130290205 is an equidigital number, since it uses as much as digits as its factorization.
130290205 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 427247.
The product of its (nonzero) digits is 540, while the sum is 22.
The square root of 130290205 is about 11414.4734876384. The cubic root of 130290205 is about 506.9563755101.
The spelling of 130290205 in words is "one hundred thirty million, two hundred ninety thousand, two hundred five".
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