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130231322 = 21317294641
BaseRepresentation
bin1111100001100…
…10110000011010
3100002001102210022
413300302300122
5231314400242
620531150442
73140643104
oct760626032
9302042708
10130231322
116756a7a1
1237745422
1320c99b70
1413420574
15b6770d2
hex7c32c1a

130231322 has 16 divisors (see below), whose sum is σ = 222749352. Its totient is φ = 56570880.

The previous prime is 130231307. The next prime is 130231333. The reversal of 130231322 is 223132031.

It can be written as a sum of positive squares in 4 ways, for example, as 85729081 + 44502241 = 9259^2 + 6671^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 130231322.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 146879 + ... + 147762.

Almost surely, 2130231322 is an apocalyptic number.

130231322 is a deficient number, since it is larger than the sum of its proper divisors (92518030).

130231322 is a wasteful number, since it uses less digits than its factorization.

130231322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294673.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 130231322 is about 11411.8938831379. The cubic root of 130231322 is about 506.8799931749.

Adding to 130231322 its reverse (223132031), we get a palindrome (353363353).

The spelling of 130231322 in words is "one hundred thirty million, two hundred thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 13 17 26 34 221 442 294641 589282 3830333 5008897 7660666 10017794 65115661 130231322