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130512030 = 23511395491
BaseRepresentation
bin1111100011101…
…11010010011110
3100002120200211220
413301313102132
5231402341110
620541154210
73143222355
oct761672236
9302520756
10130512030
1167741690
123785b966
132106786c
141349499c
15b6d0370
hex7c7749e

130512030 has 32 divisors (see below), whose sum is σ = 341705088. Its totient is φ = 31639200.

The previous prime is 130512017. The next prime is 130512037. The reversal of 130512030 is 30215031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130512037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197416 + ... + 198075.

It is an arithmetic number, because the mean of its divisors is an integer number (10678284).

Almost surely, 2130512030 is an apocalyptic number.

130512030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

130512030 is an abundant number, since it is smaller than the sum of its proper divisors (211193058).

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

130512030 is a wasteful number, since it uses less digits than its factorization.

130512030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395512.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 130512030 is about 11424.1861854576. The cubic root of 130512030 is about 507.2439178162.

Adding to 130512030 its reverse (30215031), we get a palindrome (160727061).

The spelling of 130512030 in words is "one hundred thirty million, five hundred twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 395491 790982 1186473 1977455 2372946 3954910 4350401 5932365 8700802 11864730 13051203 21752005 26102406 43504010 65256015 130512030