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663020333 = 19231517209
BaseRepresentation
bin100111100001001…
…110001100101101
31201012120220220122
4213201032030231
52324213122313
6145442454325
722300402613
oct4741161455
91635526818
10663020333
11310291a98
121660643a5
13a7492531
14640ad6b3
153d31a708
hex2784e32d

663020333 has 8 divisors (see below), whose sum is σ = 728260800. Its totient is φ = 600814368.

The previous prime is 663020329. The next prime is 663020357. The reversal of 663020333 is 333020366.

663020333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 663020333 - 22 = 663020329 is a prime.

It is a super-3 number, since 3×6630203333 (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663020233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 758168 + ... + 759041.

It is an arithmetic number, because the mean of its divisors is an integer number (91032600).

Almost surely, 2663020333 is an apocalyptic number.

It is an amenable number.

663020333 is a deficient number, since it is larger than the sum of its proper divisors (65240467).

663020333 is a wasteful number, since it uses less digits than its factorization.

663020333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517251.

The product of its (nonzero) digits is 5832, while the sum is 26.

The square root of 663020333 is about 25749.1812102832. The cubic root of 663020333 is about 871.9848692245.

Adding to 663020333 its reverse (333020366), we get a palindrome (996040699).

The spelling of 663020333 in words is "six hundred sixty-three million, twenty thousand, three hundred thirty-three".

Divisors: 1 19 23 437 1517209 28826971 34895807 663020333