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20203030333 = 1771127131797
BaseRepresentation
bin10010110100001100…
…011100011100111101
31221010222120021111201
4102310030130130331
5312333433432313
613140421015501
71313435632033
oct226414343475
957128507451
1020203030333
1186280a1792
123ab9b54591
131b9c783325
14d99256553
157d39c30dd
hex4b431c73d

20203030333 has 16 divisors (see below), whose sum is σ = 21863706624. Its totient is φ = 18599051520.

The previous prime is 20203030321. The next prime is 20203030357. The reversal of 20203030333 is 33303030202.

It is a cyclic number.

It is not a de Polignac number, because 20203030333 - 25 = 20203030301 is a prime.

It is a super-2 number, since 2×202030303332 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20203030333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203030033) 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, 87391 + ... + 219187.

It is an arithmetic number, because the mean of its divisors is an integer number (1366481664).

Almost surely, 220203030333 is an apocalyptic number.

It is an amenable number.

20203030333 is a deficient number, since it is larger than the sum of its proper divisors (1660676291).

20203030333 is a wasteful number, since it uses less digits than its factorization.

20203030333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132012.

The product of its (nonzero) digits is 972, while the sum is 19.

Adding to 20203030333 its reverse (33303030202), we get a palindrome (53506060535).

The spelling of 20203030333 in words is "twenty billion, two hundred three million, thirty thousand, three hundred thirty-three".

Divisors: 1 17 71 127 1207 2159 9017 131797 153289 2240549 9357587 16738219 159078979 284549723 1188413549 20203030333