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130272382 = 265136191
BaseRepresentation
bin1111100001111…
…00110001111110
3100002010112010001
413300330301332
5231322204012
620532104514
73141203602
oct760746176
9302115101
10130272382
1167598629
123776513a
1320cb2766
1413431502
15b684357
hex7c3cc7e

130272382 has 4 divisors (see below), whose sum is σ = 195408576. Its totient is φ = 65136190.

The previous prime is 130272367. The next prime is 130272383. The reversal of 130272382 is 283272031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 283272031 = 740467433.

It is a self number, because there is not a number n which added to its sum of digits gives 130272382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130272383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32568094 + ... + 32568097.

It is an arithmetic number, because the mean of its divisors is an integer number (48852144).

Almost surely, 2130272382 is an apocalyptic number.

130272382 is a deficient number, since it is larger than the sum of its proper divisors (65136194).

130272382 is an equidigital number, since it uses as much as digits as its factorization.

130272382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65136193.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 130272382 is about 11413.6927416152. The cubic root of 130272382 is about 506.9332581532.

The spelling of 130272382 in words is "one hundred thirty million, two hundred seventy-two thousand, three hundred eighty-two".

Divisors: 1 2 65136191 130272382