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20294273 = 61443751
BaseRepresentation
bin100110101101…
…0101010000001
31102012001111202
41031122222001
520143404043
62002550545
7334332656
oct115325201
942161452
1020294273
111050142a
126968455
13428735c
1429a3c2d
151bad1b8
hex135aa81

20294273 has 8 divisors (see below), whose sum is σ = 20701056. Its totient is φ = 19890000.

The previous prime is 20294251. The next prime is 20294279. The reversal of 20294273 is 37249202.

It is a happy number.

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 20294273 - 216 = 20228737 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 (20294279) 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 7 ways as a sum of consecutive naturals, for example, 26648 + ... + 27398.

It is an arithmetic number, because the mean of its divisors is an integer number (2587632).

Almost surely, 220294273 is an apocalyptic number.

It is an amenable number.

20294273 is a deficient number, since it is larger than the sum of its proper divisors (406783).

20294273 is an equidigital number, since it uses as much as digits as its factorization.

20294273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 20294273 is about 4504.9165364078. The cubic root of 20294273 is about 272.7665847809.

The spelling of 20294273 in words is "twenty million, two hundred ninety-four thousand, two hundred seventy-three".

Divisors: 1 61 443 751 27023 45811 332693 20294273