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130532243 = 190768449
BaseRepresentation
bin1111100011111…
…00001110010011
3100002121201120112
413301330032103
5231404012433
620541431535
73143335322
oct761741623
9302551515
10130532243
1167755896
123786b5ab
1321073b1a
141349c0b9
15b6d6348
hex7c7c393

130532243 has 4 divisors (see below), whose sum is σ = 130602600. Its totient is φ = 130461888.

The previous prime is 130532231. The next prime is 130532257. The reversal of 130532243 is 342235031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342235031 = 794332089.

It is a cyclic number.

It is not a de Polignac number, because 130532243 - 26 = 130532179 is a prime.

It is a super-2 number, since 2×1305322432 = 34077332925222098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130532203) 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, 32318 + ... + 36131.

It is an arithmetic number, because the mean of its divisors is an integer number (32650650).

Almost surely, 2130532243 is an apocalyptic number.

130532243 is a deficient number, since it is larger than the sum of its proper divisors (70357).

130532243 is an equidigital number, since it uses as much as digits as its factorization.

130532243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70356.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 130532243 is about 11425.0708094086. The cubic root of 130532243 is about 507.2701028661.

Adding to 130532243 its reverse (342235031), we get a palindrome (472767274).

The spelling of 130532243 in words is "one hundred thirty million, five hundred thirty-two thousand, two hundred forty-three".

Divisors: 1 1907 68449 130532243