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20208914 = 211918587
BaseRepresentation
bin100110100010…
…1110100010010
31102000201102022
41031011310102
520133141124
62001051442
7333526055
oct115056422
942021368
1020208914
1110453290
126926b82
13425754b
142980a9c
151b92c5e
hex1345d12

20208914 has 8 divisors (see below), whose sum is σ = 33069168. Its totient is φ = 9185860.

The previous prime is 20208907. The next prime is 20208959. The reversal of 20208914 is 41980202.

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

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 459272 + ... + 459315.

It is an arithmetic number, because the mean of its divisors is an integer number (4133646).

Almost surely, 220208914 is an apocalyptic number.

20208914 is a deficient number, since it is larger than the sum of its proper divisors (12860254).

20208914 is a wasteful number, since it uses less digits than its factorization.

20208914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918600.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 20208914 is about 4495.4325709547. The cubic root of 20208914 is about 272.3836228360.

The spelling of 20208914 in words is "twenty million, two hundred eight thousand, nine hundred fourteen".

Divisors: 1 2 11 22 918587 1837174 10104457 20208914