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20310132233 = 162712483179
BaseRepresentation
bin10010111010100101…
…000000011000001001
31221102110002121200202
4102322211000120021
5313043343212413
613155204341545
71316206163336
oct227245003011
957373077622
1020310132233
1186825a3a56
123b299a48b5
131bb8a12531
14da957598d
157dd0cbe58
hex4ba940609

20310132233 has 4 divisors (see below), whose sum is σ = 20322617040. Its totient is φ = 20297647428.

The previous prime is 20310132217. The next prime is 20310132247. The reversal of 20310132233 is 33223101302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20310132233 - 24 = 20310132217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20310132263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6239963 + ... + 6243216.

It is an arithmetic number, because the mean of its divisors is an integer number (5080654260).

Almost surely, 220310132233 is an apocalyptic number.

It is an amenable number.

20310132233 is a deficient number, since it is larger than the sum of its proper divisors (12484807).

20310132233 is a wasteful number, since it uses less digits than its factorization.

20310132233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12484806.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20310132233 its reverse (33223101302), we get a palindrome (53533233535).

The spelling of 20310132233 in words is "twenty billion, three hundred ten million, one hundred thirty-two thousand, two hundred thirty-three".

Divisors: 1 1627 12483179 20310132233