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20302310333 = 172295215081
BaseRepresentation
bin10010111010000111…
…001010101110111101
31221101220101020001202
4102322013022232331
5313034342412313
613154324545245
71316052535064
oct227207125675
957356336052
1020302310333
118679141278
123b27252225
131bb72041a6
14da84db1db
157dc584558
hex4ba1cabbd

20302310333 has 8 divisors (see below), whose sum is σ = 21590439480. Its totient is φ = 19024611840.

The previous prime is 20302310257. The next prime is 20302310339. The reversal of 20302310333 is 33301320302.

It can be written as a sum of positive squares in 4 ways, for example, as 3478404484 + 16823905849 = 58978^2 + 129707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20302310333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302310339) 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, 2603648 + ... + 2611433.

It is an arithmetic number, because the mean of its divisors is an integer number (2698804935).

Almost surely, 220302310333 is an apocalyptic number.

It is an amenable number.

20302310333 is a deficient number, since it is larger than the sum of its proper divisors (1288129147).

20302310333 is a wasteful number, since it uses less digits than its factorization.

20302310333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5215327.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20302310333 its reverse (33301320302), we get a palindrome (53603630635).

The spelling of 20302310333 in words is "twenty billion, three hundred two million, three hundred ten thousand, three hundred thirty-three".

Divisors: 1 17 229 3893 5215081 88656377 1194253549 20302310333