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11973668189 = 716007106861
BaseRepresentation
bin10110010011010111…
…11010110101011101
31010220110120100220012
423021223322311131
5144010224340224
65300045133005
7602501333420
oct131153726535
933813510805
1011973668189
11509490714a
1223a1b5a165
13118a875382
148183259b7
154a12bd80e
hex2c9afad5d

11973668189 has 8 divisors (see below), whose sum is σ = 13685175168. Its totient is φ = 10262406960.

The previous prime is 11973668153. The next prime is 11973668207. The reversal of 11973668189 is 98186637911.

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 11973668189 - 28 = 11973667933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11973668149) 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, 58619 + ... + 165479.

It is an arithmetic number, because the mean of its divisors is an integer number (1710646896).

Almost surely, 211973668189 is an apocalyptic number.

It is an amenable number.

11973668189 is a deficient number, since it is larger than the sum of its proper divisors (1711506979).

11973668189 is a wasteful number, since it uses less digits than its factorization.

11973668189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122875.

The product of its digits is 3919104, while the sum is 59.

The spelling of 11973668189 in words is "eleven billion, nine hundred seventy-three million, six hundred sixty-eight thousand, one hundred eighty-nine".

Divisors: 1 7 16007 106861 112049 748027 1710524027 11973668189