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130225446 = 23213556519
BaseRepresentation
bin1111100001100…
…01010100100110
3100002001010201200
413300301110212
5231314203241
620531103330
73140620011
oct760612446
9302033650
10130225446
116756633a
1237741b46
1320c972a0
141341c378
15b6754b6
hex7c31526

130225446 has 24 divisors (see below), whose sum is σ = 303859920. Its totient is φ = 40069296.

The previous prime is 130225441. The next prime is 130225477. The reversal of 130225446 is 644522031.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130225441) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 278026 + ... + 278493.

It is an arithmetic number, because the mean of its divisors is an integer number (12660830).

Almost surely, 2130225446 is an apocalyptic number.

130225446 is an abundant number, since it is smaller than the sum of its proper divisors (173634474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130225446 is a wasteful number, since it uses less digits than its factorization.

130225446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556540 (or 556537 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 130225446 is about 11411.6364295398. The cubic root of 130225446 is about 506.8723696335.

Adding to 130225446 its reverse (644522031), we get a palindrome (774747477).

The spelling of 130225446 in words is "one hundred thirty million, two hundred twenty-five thousand, four hundred forty-six".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 556519 1113038 1669557 3339114 5008671 7234747 10017342 14469494 21704241 43408482 65112723 130225446