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20081119 = 192693929
BaseRepresentation
bin100110010011…
…0100111011111
31101210020010011
41030212213133
520120043434
61554224051
7332454352
oct114464737
941706104
1020081119
1110376273
126885027
134211326
14294a299
151b69e64
hex13269df

20081119 has 8 divisors (see below), whose sum is σ = 21222000. Its totient is φ = 18948672.

The previous prime is 20081107. The next prime is 20081153. The reversal of 20081119 is 91118002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20081119 is a prime.

It is a super-2 number, since 2×200811192 = 806502680584322, which contains 22 as substring.

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 20081119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20081419) 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, 3147 + ... + 7075.

It is an arithmetic number, because the mean of its divisors is an integer number (2652750).

Almost surely, 220081119 is an apocalyptic number.

20081119 is a deficient number, since it is larger than the sum of its proper divisors (1140881).

20081119 is a wasteful number, since it uses less digits than its factorization.

20081119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 20081119 is about 4481.1961572777. The cubic root of 20081119 is about 271.8082513550.

The spelling of 20081119 in words is "twenty million, eighty-one thousand, one hundred nineteen".

Divisors: 1 19 269 3929 5111 74651 1056901 20081119