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130140205 = 5132002157
BaseRepresentation
bin1111100000111…
…00100000101101
3100001212210210121
413300130200231
5231303441310
620525204541
73140113336
oct760344055
9301783717
10130140205
1167508298
1237700751
1320c67550
14133d928d
15b65a0da
hex7c1c82d

130140205 has 8 divisors (see below), whose sum is σ = 168181272. Its totient is φ = 96103488.

The previous prime is 130140203. The next prime is 130140209. The reversal of 130140205 is 502041031.

It can be written as a sum of positive squares in 4 ways, for example, as 24029604 + 106110601 = 4902^2 + 10301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130140205 - 21 = 130140203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130140203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1001014 + ... + 1001143.

It is an arithmetic number, because the mean of its divisors is an integer number (21022659).

Almost surely, 2130140205 is an apocalyptic number.

It is an amenable number.

130140205 is a deficient number, since it is larger than the sum of its proper divisors (38041067).

130140205 is a wasteful number, since it uses less digits than its factorization.

130140205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002175.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 130140205 is about 11407.9009901033. The cubic root of 130140205 is about 506.7617518816.

Adding to 130140205 its reverse (502041031), we get a palindrome (632181236).

The spelling of 130140205 in words is "one hundred thirty million, one hundred forty thousand, two hundred five".

Divisors: 1 5 13 65 2002157 10010785 26028041 130140205