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130566727 = 196871933
BaseRepresentation
bin1111100100001…
…00101001000111
3100002200110212201
413302010221013
5231411113402
620542255331
73143541004
oct762045107
9302613781
10130566727
1167779795
1237887547
1321086725
14134aa8ab
15b6e1687
hex7c84a47

130566727 has 4 divisors (see below), whose sum is σ = 137438680. Its totient is φ = 123694776.

The previous prime is 130566707. The next prime is 130566739. The reversal of 130566727 is 727665031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 727665031 = 2531287501.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130566727 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 (130566707) 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 3 ways as a sum of consecutive naturals, for example, 3435948 + ... + 3435985.

It is an arithmetic number, because the mean of its divisors is an integer number (34359670).

Almost surely, 2130566727 is an apocalyptic number.

130566727 is a deficient number, since it is larger than the sum of its proper divisors (6871953).

130566727 is an equidigital number, since it uses as much as digits as its factorization.

130566727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6871952.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 130566727 is about 11426.5798470058. The cubic root of 130566727 is about 507.3147691280.

The spelling of 130566727 in words is "one hundred thirty million, five hundred sixty-six thousand, seven hundred twenty-seven".

Divisors: 1 19 6871933 130566727