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130730012 = 2275388093
BaseRepresentation
bin1111100101011…
…00100000011100
3100002222202212022
413302230200130
5231431330022
620545555312
73145121030
oct762544034
9302882768
10130730012
1167880436
1237945b38
1321112b4a
14135101c0
15b724c42
hex7cac81c

130730012 has 24 divisors (see below), whose sum is σ = 266396256. Its totient is φ = 54969408.

The previous prime is 130730011. The next prime is 130730021. The reversal of 130730012 is 210037031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130730011) 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 7 ways as a sum of consecutive naturals, for example, 42563 + ... + 45530.

It is an arithmetic number, because the mean of its divisors is an integer number (11099844).

Almost surely, 2130730012 is an apocalyptic number.

It is an amenable number.

130730012 is an abundant number, since it is smaller than the sum of its proper divisors (135666244).

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

130730012 is a wasteful number, since it uses less digits than its factorization.

130730012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88157 (or 88155 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 130730012 is about 11433.7225784081. The cubic root of 130730012 is about 507.5261613828.

Adding to 130730012 its reverse (210037031), we get a palindrome (340767043).

The spelling of 130730012 in words is "one hundred thirty million, seven hundred thirty thousand, twelve".

Divisors: 1 2 4 7 14 28 53 106 212 371 742 1484 88093 176186 352372 616651 1233302 2466604 4668929 9337858 18675716 32682503 65365006 130730012