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20814113 = 31709947
BaseRepresentation
bin100111101100…
…1100100100001
31110011110121002
41033121210201
520312022423
62022041345
7341626355
oct117314441
943143532
1020814113
1110826a51
126b79255
134409b58
142a9b465
151c62228
hex13d9921

20814113 has 8 divisors (see below), whose sum is σ = 21538560. Its totient is φ = 20093040.

The previous prime is 20814097. The next prime is 20814119. The reversal of 20814113 is 31141802.

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 20814113 - 24 = 20814097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20814119) 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, 21506 + ... + 22452.

It is an arithmetic number, because the mean of its divisors is an integer number (2692320).

Almost surely, 220814113 is an apocalyptic number.

It is an amenable number.

20814113 is a deficient number, since it is larger than the sum of its proper divisors (724447).

20814113 is an equidigital number, since it uses as much as digits as its factorization.

20814113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 20814113 is about 4562.2486780096. The cubic root of 20814113 is about 275.0759591823.

Adding to 20814113 its reverse (31141802), we get a palindrome (51955915).

The spelling of 20814113 in words is "twenty million, eight hundred fourteen thousand, one hundred thirteen".

Divisors: 1 31 709 947 21979 29357 671423 20814113