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130283443 = 671944529
BaseRepresentation
bin1111100001111…
…11011110110011
3100002011002021201
413300333132303
5231323032233
620532232031
73141251053
oct760773663
9302132251
10130283443
11675a5974
123776b617
1320cb77c4
1413435563
15b68777d
hex7c3f7b3

130283443 has 4 divisors (see below), whose sum is σ = 132228040. Its totient is φ = 128338848.

The previous prime is 130283423. The next prime is 130283453. The reversal of 130283443 is 344382031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130283443 - 217 = 130152371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130283423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 972198 + ... + 972331.

It is an arithmetic number, because the mean of its divisors is an integer number (33057010).

Almost surely, 2130283443 is an apocalyptic number.

130283443 is a deficient number, since it is larger than the sum of its proper divisors (1944597).

130283443 is an equidigital number, since it uses as much as digits as its factorization.

130283443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944596.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 130283443 is about 11414.1772809082. The cubic root of 130283443 is about 506.9476050930.

It can be divided in two parts, 13028 and 3443, that added together give a triangular number (16471 = T181).

The spelling of 130283443 in words is "one hundred thirty million, two hundred eighty-three thousand, four hundred forty-three".

Divisors: 1 67 1944529 130283443