Base | Representation |
---|---|
bin | 100110110010000… |
… | …0100011111010101 |
3 | 10100200121221122221 |
4 | 1031210010133111 |
5 | 10131113114310 |
6 | 333043222341 |
7 | 44150610031 |
oct | 11544043725 |
9 | 3320557587 |
10 | 1301301205 |
11 | 608606946 |
12 | 3039779b1 |
13 | 1797a2319 |
14 | c4b7d1c1 |
15 | 7939aada |
hex | 4d9047d5 |
1301301205 has 4 divisors (see below), whose sum is σ = 1561561452. Its totient is φ = 1041040960.
The previous prime is 1301301163. The next prime is 1301301223. The reversal of 1301301205 is 5021031031.
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 1018758724 + 282542481 = 31918^2 + 16809^2 .
It is not a de Polignac number, because 1301301205 - 211 = 1301299157 is a prime.
It is a super-2 number, since 2×13013012052 = 3386769652268904050, which contains 22 as substring.
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 3 ways as a sum of consecutive naturals, for example, 130130116 + ... + 130130125.
It is an arithmetic number, because the mean of its divisors is an integer number (390390363).
Almost surely, 21301301205 is an apocalyptic number.
It is an amenable number.
1301301205 is a deficient number, since it is larger than the sum of its proper divisors (260260247).
1301301205 is an equidigital number, since it uses as much as digits as its factorization.
1301301205 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 260260246.
The product of its (nonzero) digits is 90, while the sum is 16.
The square root of 1301301205 is about 36073.5527083208. The cubic root of 1301301205 is about 1091.7568964779.
Adding to 1301301205 its reverse (5021031031), we get a palindrome (6322332236).
The spelling of 1301301205 in words is "one billion, three hundred one million, three hundred one thousand, two hundred five".
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