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130305048 = 23312742751
BaseRepresentation
bin1111100010001…
…00110000011000
3100002012011220220
413301010300120
5231324230143
620532520040
73141401046
oct761046030
9302164826
10130305048
1167610125
1237780020
1320cc45a3
141343d396
15b68dd83
hex7c44c18

130305048 has 32 divisors (see below), whose sum is σ = 328335360. Its totient is φ = 43092000.

The previous prime is 130305041. The next prime is 130305053. The reversal of 130305048 is 840503031.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130305041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18328 + ... + 24423.

It is an arithmetic number, because the mean of its divisors is an integer number (10260480).

Almost surely, 2130305048 is an apocalyptic number.

It is an amenable number.

130305048 is an abundant number, since it is smaller than the sum of its proper divisors (198030312).

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

130305048 is a wasteful number, since it uses less digits than its factorization.

130305048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42887 (or 42883 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 130305048 is about 11415.1236524183. The cubic root of 130305048 is about 506.9756260433.

Adding to 130305048 its reverse (840503031), we get a palindrome (970808079).

The spelling of 130305048 in words is "one hundred thirty million, three hundred five thousand, forty-eight".

Divisors: 1 2 3 4 6 8 12 24 127 254 381 508 762 1016 1524 3048 42751 85502 128253 171004 256506 342008 513012 1026024 5429377 10858754 16288131 21717508 32576262 43435016 65152524 130305048