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20323806067 = 412531491531
BaseRepresentation
bin10010111011011001…
…001010101101110011
31221110101211022200001
4102323121022231303
5313110343243232
613200413410431
71316433333625
oct227331125563
957411738601
1020323806067
11868a293344
123b32499a17
131bbb7bc366
14dab2d4c15
157de3cd6e7
hex4bb64ab73

20323806067 has 24 divisors (see below), whose sum is σ = 21381051600. Its totient is φ = 19310803200.

The previous prime is 20323806053. The next prime is 20323806077. The reversal of 20323806067 is 76060832302.

It is not a de Polignac number, because 20323806067 - 27 = 20323805939 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20323806077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13274092 + ... + 13275622.

It is an arithmetic number, because the mean of its divisors is an integer number (890877150).

Almost surely, 220323806067 is an apocalyptic number.

20323806067 is a deficient number, since it is larger than the sum of its proper divisors (1057245533).

20323806067 is a wasteful number, since it uses less digits than its factorization.

20323806067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815 (or 1774 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 20323806067 in words is "twenty billion, three hundred twenty-three million, eight hundred six thousand, sixty-seven".

Divisors: 1 41 53 149 1531 1681 2173 6109 7897 62771 81143 89093 228119 250469 323777 2573611 3326863 9352879 12090307 13274857 136401383 383468039 495702587 20323806067