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20335105 = 572325261
BaseRepresentation
bin100110110010…
…0101000000001
31102021010112001
41031210220001
520201210410
62003504001
7334563010
oct115445001
942233461
1020335105
111052a07a
126988001
13429cb0b
1429b4a77
151bba33a
hex1364a01

20335105 has 16 divisors (see below), whose sum is σ = 29101824. Its totient is φ = 13337280.

The previous prime is 20335097. The next prime is 20335109. The reversal of 20335105 is 50153302.

It is not a de Polignac number, because 20335105 - 23 = 20335097 is a prime.

It is a super-2 number, since 2×203351052 = 827032990722050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20335109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11826 + ... + 13435.

It is an arithmetic number, because the mean of its divisors is an integer number (1818864).

Almost surely, 220335105 is an apocalyptic number.

It is an amenable number.

20335105 is a deficient number, since it is larger than the sum of its proper divisors (8766719).

20335105 is a wasteful number, since it uses less digits than its factorization.

20335105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25296.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 20335105 is about 4509.4461965967. The cubic root of 20335105 is about 272.9493973396.

Adding to 20335105 its reverse (50153302), we get a palindrome (70488407).

The spelling of 20335105 in words is "twenty million, three hundred thirty-five thousand, one hundred five".

Divisors: 1 5 7 23 35 115 161 805 25261 126305 176827 581003 884135 2905015 4067021 20335105