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130782349 is a prime number
BaseRepresentation
bin1111100101110…
…01010010001101
3100010002102122201
413302321102031
5231440013344
620551041501
73145426435
oct762712215
9303072581
10130782349
1167906795
1237970291
1321130909
14135252c5
15b7354d4
hex7cb948d

130782349 has 2 divisors, whose sum is σ = 130782350. Its totient is φ = 130782348.

The previous prime is 130782329. The next prime is 130782361. The reversal of 130782349 is 943287031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127916100 + 2866249 = 11310^2 + 1693^2 .

It is a cyclic number.

It is not a de Polignac number, because 130782349 - 25 = 130782317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130782329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65391174 + 65391175.

It is an arithmetic number, because the mean of its divisors is an integer number (65391175).

Almost surely, 2130782349 is an apocalyptic number.

It is an amenable number.

130782349 is a deficient number, since it is larger than the sum of its proper divisors (1).

130782349 is an equidigital number, since it uses as much as digits as its factorization.

130782349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 130782349 is about 11436.0110615546. The cubic root of 130782349 is about 507.5938807289.

It can be divided in two parts, 130782 and 349, that added together give a palindrome (131131).

The spelling of 130782349 in words is "one hundred thirty million, seven hundred eighty-two thousand, three hundred forty-nine".