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20302321307 = 672931034197
BaseRepresentation
bin10010111010000111…
…001101011010011011
31221101220101210010012
4102322013031122123
5313034343240212
613154325112135
71316052612062
oct227207153233
957356353105
1020302321307
118679149544
123b2725864b
131bb7209198
14da85011d9
157dc587922
hex4ba1cd69b

20302321307 has 8 divisors (see below), whose sum is σ = 20675686416. Its totient is φ = 19931025312.

The previous prime is 20302321297. The next prime is 20302321327. The reversal of 20302321307 is 70312320302.

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 20302321307 - 26 = 20302321243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302321327) 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, 497468 + ... + 536729.

It is an arithmetic number, because the mean of its divisors is an integer number (2584460802).

Almost surely, 220302321307 is an apocalyptic number.

20302321307 is a deficient number, since it is larger than the sum of its proper divisors (373365109).

20302321307 is a wasteful number, since it uses less digits than its factorization.

20302321307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034557.

The product of its (nonzero) digits is 1512, while the sum is 23.

Adding to 20302321307 its reverse (70312320302), we get a palindrome (90614641609).

The spelling of 20302321307 in words is "twenty billion, three hundred two million, three hundred twenty-one thousand, three hundred seven".

Divisors: 1 67 293 19631 1034197 69291199 303019721 20302321307