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130540013 = 196870527
BaseRepresentation
bin1111100011111…
…10000111101101
3100002122010020022
413301332013231
5231404240023
620541531525
73143400062
oct761760755
9302563208
10130540013
116776070a
1237873ba5
1321077516
14134a0c69
15b6d87c8
hex7c7e1ed

130540013 has 4 divisors (see below), whose sum is σ = 137410560. Its totient is φ = 123669468.

The previous prime is 130540001. The next prime is 130540021. The reversal of 130540013 is 310045031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130540013 - 28 = 130539757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130539973 and 130540000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130540213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3435245 + ... + 3435282.

It is an arithmetic number, because the mean of its divisors is an integer number (34352640).

Almost surely, 2130540013 is an apocalyptic number.

It is an amenable number.

130540013 is a deficient number, since it is larger than the sum of its proper divisors (6870547).

130540013 is an equidigital number, since it uses as much as digits as its factorization.

130540013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870546.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 130540013 is about 11425.4108460046. The cubic root of 130540013 is about 507.2801678391.

Adding to 130540013 its reverse (310045031), we get a palindrome (440585044).

The spelling of 130540013 in words is "one hundred thirty million, five hundred forty thousand, thirteen".

Divisors: 1 19 6870527 130540013