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20331332203 = 731313932803
BaseRepresentation
bin10010111011110101…
…111000001001101011
31221110220222200120211
4102323311320021223
5313114310112303
613201243001551
71316554321000
oct227365701153
957426880524
1020331332203
118693563896
123b34b092b7
131bc0225bb0
14dac2d38a7
157dedb866d
hex4bbd7826b

20331332203 has 32 divisors (see below), whose sum is σ = 25718336000. Its totient is φ = 15970112928.

The previous prime is 20331332201. The next prime is 20331332207. The reversal of 20331332203 is 30223313302.

It is not a de Polignac number, because 20331332203 - 21 = 20331332201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20331332201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 603400 + ... + 636202.

It is an arithmetic number, because the mean of its divisors is an integer number (803698000).

Almost surely, 220331332203 is an apocalyptic number.

20331332203 is a deficient number, since it is larger than the sum of its proper divisors (5387003797).

20331332203 is a wasteful number, since it uses less digits than its factorization.

20331332203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32976 (or 32962 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 20331332203 its reverse (30223313302), we get a palindrome (50554645505).

The spelling of 20331332203 in words is "twenty billion, three hundred thirty-one million, three hundred thirty-two thousand, two hundred three".

Divisors: 1 7 13 49 91 139 343 637 973 1807 4459 6811 12649 32803 47677 88543 229621 426439 619801 1607347 2985073 4559617 11251429 20895511 31917319 59275021 146268577 223421233 414925147 1563948631 2904476029 20331332203