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20414853 = 322268317
BaseRepresentation
bin100110111100…
…0000110000101
31102102011220200
41031320012011
520211233403
62005321113
7335344344
oct115700605
942364820
1020414853
1110583a88
126a06199
1342ca1c4
1429d5b5b
151bd3ca3
hex1378185

20414853 has 6 divisors (see below), whose sum is σ = 29488134. Its totient is φ = 13609896.

The previous prime is 20414819. The next prime is 20414857. The reversal of 20414853 is 35841402.

It can be written as a sum of positive squares in only one way, i.e., 20223009 + 191844 = 4497^2 + 438^2 .

It is not a de Polignac number, because 20414853 - 26 = 20414789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20414857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1134150 + ... + 1134167.

It is an arithmetic number, because the mean of its divisors is an integer number (4914689).

Almost surely, 220414853 is an apocalyptic number.

It is an amenable number.

20414853 is a deficient number, since it is larger than the sum of its proper divisors (9073281).

20414853 is a wasteful number, since it uses less digits than its factorization.

20414853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268323 (or 2268320 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20414853 is about 4518.2798718096. The cubic root of 20414853 is about 273.3057396627.

The spelling of 20414853 in words is "twenty million, four hundred fourteen thousand, eight hundred fifty-three".

Divisors: 1 3 9 2268317 6804951 20414853