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130028065 = 535597307
BaseRepresentation
bin1111100000000…
…01001000100001
3100001200002222021
413300001020201
5231241344230
620522541441
73136135366
oct760011041
9301602867
10130028065
1167441012
1237667881
1320c284ab
14133aa46d
15b636c7a
hex7c01221

130028065 has 8 divisors (see below), whose sum is σ = 156098880. Its totient is φ = 103978992.

The previous prime is 130028057. The next prime is 130028069. The reversal of 130028065 is 560820031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130028065 - 23 = 130028057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130028069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14142 + ... + 21448.

It is an arithmetic number, because the mean of its divisors is an integer number (19512360).

Almost surely, 2130028065 is an apocalyptic number.

It is an amenable number.

130028065 is a deficient number, since it is larger than the sum of its proper divisors (26070815).

130028065 is an equidigital number, since it uses as much as digits as its factorization.

130028065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10871.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 130028065 is about 11402.9849162401. The cubic root of 130028065 is about 506.6161535418.

Adding to 130028065 its reverse (560820031), we get a palindrome (690848096).

The spelling of 130028065 in words is "one hundred thirty million, twenty-eight thousand, sixty-five".

Divisors: 1 5 3559 7307 17795 36535 26005613 130028065