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20304132343 = 1111171652489
BaseRepresentation
bin10010111010001110…
…000111100011110111
31221102000210210101121
4102322032013203313
5313040324213333
613154432004411
71316104164055
oct227216074367
957360723347
1020304132343
11867a176170
123b27990707
131bb76c15c1
14da88531d5
157dc7e432d
hex4ba3878f7

20304132343 has 8 divisors (see below), whose sum is σ = 22169805840. Its totient is φ = 18441766080.

The previous prime is 20304132311. The next prime is 20304132389. The reversal of 20304132343 is 34323140302.

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

It is a cyclic number.

It is not a de Polignac number, because 20304132343 - 25 = 20304132311 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 (20304132943) 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, 813958 + ... + 838531.

It is an arithmetic number, because the mean of its divisors is an integer number (2771225730).

Almost surely, 220304132343 is an apocalyptic number.

20304132343 is a deficient number, since it is larger than the sum of its proper divisors (1865673497).

20304132343 is a wasteful number, since it uses less digits than its factorization.

20304132343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653617.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 20304132343 its reverse (34323140302), we get a palindrome (54627272645).

The spelling of 20304132343 in words is "twenty billion, three hundred four million, one hundred thirty-two thousand, three hundred forty-three".

Divisors: 1 11 1117 12287 1652489 18177379 1845830213 20304132343