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20834793 = 337110237
BaseRepresentation
bin100111101111…
…0100111101001
31110012111222000
41033132213221
520313203133
62022321213
7342043560
oct117364751
943174860
1020834793
1110840541
126b89209
1344163a5
142aa4bd7
151c68413
hex13de9e9

20834793 has 16 divisors (see below), whose sum is σ = 35276160. Its totient is φ = 11905488.

The previous prime is 20834761. The next prime is 20834797. The reversal of 20834793 is 39743802.

It is not a de Polignac number, because 20834793 - 25 = 20834761 is a prime.

It is a super-3 number, since 3×208347933 (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20834797) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54930 + ... + 55307.

It is an arithmetic number, because the mean of its divisors is an integer number (2204760).

Almost surely, 220834793 is an apocalyptic number.

It is an amenable number.

20834793 is a deficient number, since it is larger than the sum of its proper divisors (14441367).

20834793 is a wasteful number, since it uses less digits than its factorization.

20834793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110253 (or 110247 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 20834793 is about 4564.5145415477. The cubic root of 20834793 is about 275.1670302087.

The spelling of 20834793 in words is "twenty million, eight hundred thirty-four thousand, seven hundred ninety-three".

Divisors: 1 3 7 9 21 27 63 189 110237 330711 771659 992133 2314977 2976399 6944931 20834793