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20220235 = 57577721
BaseRepresentation
bin100110100100…
…0100101001011
31102001021221121
41031020211023
520134021420
62001220111
7333604060
oct115104513
942037847
1020220235
1110460842
126931637
13425c749
142984c67
151b962aa
hex134894b

20220235 has 8 divisors (see below), whose sum is σ = 27730656. Its totient is φ = 13865280.

The previous prime is 20220217. The next prime is 20220247. The reversal of 20220235 is 53202202.

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

It is not a de Polignac number, because 20220235 - 215 = 20187467 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 288826 + ... + 288895.

It is an arithmetic number, because the mean of its divisors is an integer number (3466332).

Almost surely, 220220235 is an apocalyptic number.

20220235 is a deficient number, since it is larger than the sum of its proper divisors (7510421).

20220235 is an equidigital number, since it uses as much as digits as its factorization.

20220235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577733.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20220235 is about 4496.6915615817. The cubic root of 20220235 is about 272.4344762920.

Adding to 20220235 its reverse (53202202), we get a palindrome (73422437).

The spelling of 20220235 in words is "twenty million, two hundred twenty thousand, two hundred thirty-five".

Divisors: 1 5 7 35 577721 2888605 4044047 20220235