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20321307299 = 122934574783
BaseRepresentation
bin10010111011001111…
…101000101010100011
31221110020010101000002
4102323033220222203
5313104223313144
613200244050215
71316403155606
oct227317505243
957406111002
1020321307299
118688936a47
123b3169396b
131bbb125bb7
14daac4433d
157de08814e
hex4bb3e8aa3

20321307299 has 8 divisors (see below), whose sum is σ = 20347978560. Its totient is φ = 20294654976.

The previous prime is 20321307287. The next prime is 20321307341. The reversal of 20321307299 is 99270312302.

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 20321307299 - 28 = 20321307043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321309299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4246262 + ... + 4251044.

It is an arithmetic number, because the mean of its divisors is an integer number (2543497320).

Almost surely, 220321307299 is an apocalyptic number.

20321307299 is a deficient number, since it is larger than the sum of its proper divisors (26671261).

20321307299 is a wasteful number, since it uses less digits than its factorization.

20321307299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9469.

The product of its (nonzero) digits is 40824, while the sum is 38.

The spelling of 20321307299 in words is "twenty billion, three hundred twenty-one million, three hundred seven thousand, two hundred ninety-nine".

Divisors: 1 1229 3457 4783 4248653 5878307 16534831 20321307299