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12017606089 = 12899323201
BaseRepresentation
bin10110011000100111…
…00001110111001001
31011000112020122100211
423030103201313021
5144103001343324
65304255001121
7603543652306
oct131423416711
934015218324
1012017606089
115107697365
1223b48091a1
1311969ba428
148200c20ad
154a509c294
hex2cc4e1dc9

12017606089 has 4 divisors (see below), whose sum is σ = 12026930580. Its totient is φ = 12008281600.

The previous prime is 12017606087. The next prime is 12017606129. The reversal of 12017606089 is 98060671021.

12017606089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98060671021 = 293381402449.

It can be written as a sum of positive squares in 2 ways, for example, as 6113988864 + 5903617225 = 78192^2 + 76835^2 .

It is a cyclic number.

It is not a de Polignac number, because 12017606089 - 21 = 12017606087 is a prime.

It is a super-2 number, since 2×120176060892 (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12017606087) 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, 4660312 + ... + 4662889.

It is an arithmetic number, because the mean of its divisors is an integer number (3006732645).

Almost surely, 212017606089 is an apocalyptic number.

It is an amenable number.

12017606089 is a deficient number, since it is larger than the sum of its proper divisors (9324491).

12017606089 is an equidigital number, since it uses as much as digits as its factorization.

12017606089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324490.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 12017606089 in words is "twelve billion, seventeen million, six hundred six thousand, eighty-nine".

Divisors: 1 1289 9323201 12017606089