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130445011 = 160781173
BaseRepresentation
bin1111100011001…
…10111011010011
3100002110021220201
413301212323103
5231343220021
620535520031
73142523104
oct761467323
9302407821
10130445011
11676a62a4
1237829017
13210431c8
14134783ab
15b6ba591
hex7c66ed3

130445011 has 4 divisors (see below), whose sum is σ = 130527792. Its totient is φ = 130362232.

The previous prime is 130445009. The next prime is 130445057. The reversal of 130445011 is 110544031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130445011 - 21 = 130445009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130445011.

It is not an unprimeable number, because it can be changed into a prime (130445311) 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 3 ways as a sum of consecutive naturals, for example, 38980 + ... + 42193.

It is an arithmetic number, because the mean of its divisors is an integer number (32631948).

Almost surely, 2130445011 is an apocalyptic number.

130445011 is a deficient number, since it is larger than the sum of its proper divisors (82781).

130445011 is an equidigital number, since it uses as much as digits as its factorization.

130445011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82780.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 130445011 is about 11421.2526020573. The cubic root of 130445011 is about 507.1570783101.

Adding to 130445011 its reverse (110544031), we get a palindrome (240989042).

The spelling of 130445011 in words is "one hundred thirty million, four hundred forty-five thousand, eleven".

Divisors: 1 1607 81173 130445011