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20330323203 = 364329093623
BaseRepresentation
bin10010111011110010…
…000001110100000011
31221110212002102111110
4102323302001310003
5313114030320303
613201205214403
71316542616211
oct227362016403
957425072443
1020330323203
118692a34803
123b34701403
131bbcc61858
14dac10dcb1
157dec69703
hex4bbc81d03

20330323203 has 16 divisors (see below), whose sum is σ = 27166083840. Its totient is φ = 13524084384.

The previous prime is 20330323163. The next prime is 20330323271. The reversal of 20330323203 is 30232303302.

It is not a de Polignac number, because 20330323203 - 226 = 20263214339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20330323203.

It is not an unprimeable number, because it can be changed into a prime (20330323003) 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, 5609650 + ... + 5613272.

It is an arithmetic number, because the mean of its divisors is an integer number (1697880240).

Almost surely, 220330323203 is an apocalyptic number.

20330323203 is a deficient number, since it is larger than the sum of its proper divisors (6835760637).

20330323203 is a wasteful number, since it uses less digits than its factorization.

20330323203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7178.

The product of its (nonzero) digits is 1944, while the sum is 21.

Adding to 20330323203 its reverse (30232303302), we get a palindrome (50562626505).

The spelling of 20330323203 in words is "twenty billion, three hundred thirty million, three hundred twenty-three thousand, two hundred three".

Divisors: 1 3 643 1929 2909 3623 8727 10869 1870487 2329589 5611461 6988767 10539307 31617921 6776774401 20330323203