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11806189089 = 38874436749
BaseRepresentation
bin10101111111011010…
…00010011000100001
31010110210102112202120
422333231002120201
5143134341022324
65231303334453
7565365644232
oct127755023041
933423375676
1011806189089
115009316672
122355a51429
131161c66606
147dddab089
1549173a179
hex2bfb42621

11806189089 has 8 divisors (see below), whose sum is σ = 15759336000. Its totient is φ = 7861917456.

The previous prime is 11806189069. The next prime is 11806189127. The reversal of 11806189089 is 98098160811.

11806189089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2k-11806189089 is a prime.

It is a super-2 number, since 2×118061890892 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11806189069) 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 7 ways as a sum of consecutive naturals, for example, 2215714 + ... + 2221035.

It is an arithmetic number, because the mean of its divisors is an integer number (1969917000).

Almost surely, 211806189089 is an apocalyptic number.

It is an amenable number.

11806189089 is a deficient number, since it is larger than the sum of its proper divisors (3953146911).

11806189089 is an equidigital number, since it uses as much as digits as its factorization.

11806189089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437639.

The product of its (nonzero) digits is 248832, while the sum is 51.

The spelling of 11806189089 in words is "eleven billion, eight hundred six million, one hundred eighty-nine thousand, eighty-nine".

Divisors: 1 3 887 2661 4436749 13310247 3935396363 11806189089