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20873068 = 2210634909
BaseRepresentation
bin100111110011…
…1111101101100
31110021110110121
41033213331230
520320414233
62023214324
7342263266
oct117477554
943243417
1020873068
1110867277
126ba73a4
13442a938
142ab4b36
151c7492d
hex13e7f6c

20873068 has 12 divisors (see below), whose sum is σ = 36569680. Its totient is φ = 10424592.

The previous prime is 20873063. The next prime is 20873071. The reversal of 20873068 is 86037802.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20873063) 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 3 ways as a sum of consecutive naturals, for example, 1798 + ... + 6706.

Almost surely, 220873068 is an apocalyptic number.

It is an amenable number.

20873068 is a deficient number, since it is larger than the sum of its proper divisors (15696612).

20873068 is a wasteful number, since it uses less digits than its factorization.

20873068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976 (or 5974 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 20873068 is about 4568.7052870589. The cubic root of 20873068 is about 275.3354276149.

The spelling of 20873068 in words is "twenty million, eight hundred seventy-three thousand, sixty-eight".

Divisors: 1 2 4 1063 2126 4252 4909 9818 19636 5218267 10436534 20873068