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130042205 = 526008441
BaseRepresentation
bin1111100000001…
…00100101011101
3100001200211100222
413300010211131
5231242322310
620523131125
73136224536
oct760044535
9301624328
10130042205
11674506a7
1237673aa5
1320c31a67
14133b168d
15b63b055
hex7c0495d

130042205 has 4 divisors (see below), whose sum is σ = 156050652. Its totient is φ = 104033760.

The previous prime is 130042169. The next prime is 130042267. The reversal of 130042205 is 502240031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 502240031 = 539476227.

It can be written as a sum of positive squares in 2 ways, for example, as 86508601 + 43533604 = 9301^2 + 6598^2 .

It is not a de Polignac number, because 130042205 - 26 = 130042141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13004216 + ... + 13004225.

It is an arithmetic number, because the mean of its divisors is an integer number (39012663).

Almost surely, 2130042205 is an apocalyptic number.

It is an amenable number.

130042205 is a deficient number, since it is larger than the sum of its proper divisors (26008447).

130042205 is an equidigital number, since it uses as much as digits as its factorization.

130042205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26008446.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 130042205 is about 11403.6049124827. The cubic root of 130042205 is about 506.6345169947.

Adding to 130042205 its reverse (502240031), we get a palindrome (632282236).

The spelling of 130042205 in words is "one hundred thirty million, forty-two thousand, two hundred five".

Divisors: 1 5 26008441 130042205