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20200733 = 729191521
BaseRepresentation
bin100110100001…
…1110100011101
31102000022012022
41031003310131
520132410413
62000545525
7333463160
oct115036435
942008168
1020200733
1110448123
1269222a5
1342538c7
14297bad7
151b90608
hex1343d1d

20200733 has 16 divisors (see below), whose sum is σ = 24053760. Its totient is φ = 16598400.

The previous prime is 20200729. The next prime is 20200751. The reversal of 20200733 is 33700202.

It is not a de Polignac number, because 20200733 - 22 = 20200729 is a prime.

It is a super-2 number, since 2×202007332 = 816139227474578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38513 + ... + 39033.

It is an arithmetic number, because the mean of its divisors is an integer number (1503360).

Almost surely, 220200733 is an apocalyptic number.

It is an amenable number.

20200733 is a deficient number, since it is larger than the sum of its proper divisors (3853027).

20200733 is a wasteful number, since it uses less digits than its factorization.

20200733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748.

The product of its (nonzero) digits is 252, while the sum is 17.

The square root of 20200733 is about 4494.5225552888. The cubic root of 20200733 is about 272.3468623057.

Adding to 20200733 its reverse (33700202), we get a palindrome (53900935).

The spelling of 20200733 in words is "twenty million, two hundred thousand, seven hundred thirty-three".

Divisors: 1 7 29 191 203 521 1337 3647 5539 15109 38773 99511 105763 696577 2885819 20200733