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20230203033 = 34249755593
BaseRepresentation
bin10010110101110100…
…000110011010011001
31221012212200210110000
4102311310012122121
5312412412444113
613143231243213
71314215613525
oct226564063231
957185623400
1020230203033
118641470a67
123b07079509
131ba52a8451
14d9cacad85
157d608e373
hex4b5d06699

20230203033 has 10 divisors (see below), whose sum is σ = 30220426874. Its totient is φ = 13486801968.

The previous prime is 20230203017. The next prime is 20230203073. The reversal of 20230203033 is 33030203202.

It can be written as a sum of positive squares in only one way, i.e., 16156189449 + 4074013584 = 127107^2 + 63828^2 .

It is not a de Polignac number, because 20230203033 - 24 = 20230203017 is a prime.

It is a super-2 number, since 2×202302030332 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20230202997 and 20230203015.

It is not an unprimeable number, because it can be changed into a prime (20230203073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 124877716 + ... + 124877877.

Almost surely, 220230203033 is an apocalyptic number.

It is an amenable number.

20230203033 is a deficient number, since it is larger than the sum of its proper divisors (9990223841).

20230203033 is an equidigital number, since it uses as much as digits as its factorization.

20230203033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249755605 (or 249755596 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

Adding to 20230203033 its reverse (33030203202), we get a palindrome (53260406235).

The spelling of 20230203033 in words is "twenty billion, two hundred thirty million, two hundred three thousand, thirty-three".

Divisors: 1 3 9 27 81 249755593 749266779 2247800337 6743401011 20230203033