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20667792301 = 132122294629
BaseRepresentation
bin10011001111111001…
…010111101110101101
31222100101002122001221
4103033321113232231
5314311423323201
613254502303341
71331111223142
oct231771275655
958311078057
1020667792301
118846480292
124009727b51
131c44b4b200
141000c783c9
1580e6ca4a1
hex4cfe57bad

20667792301 has 6 divisors (see below), whose sum is σ = 22379917290. Its totient is φ = 19077961968.

The previous prime is 20667792283. The next prime is 20667792331. The reversal of 20667792301 is 10329776602.

It can be written as a sum of positive squares in 3 ways, for example, as 1040062500 + 19627729801 = 32250^2 + 140099^2 .

It is not a de Polignac number, because 20667792301 - 25 = 20667792269 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 (20667792331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61147146 + ... + 61147483.

It is an arithmetic number, because the mean of its divisors is an integer number (3729986215).

Almost surely, 220667792301 is an apocalyptic number.

It is an amenable number.

20667792301 is a deficient number, since it is larger than the sum of its proper divisors (1712124989).

20667792301 is a wasteful number, since it uses less digits than its factorization.

20667792301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122294655 (or 122294642 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 20667792301 in words is "twenty billion, six hundred sixty-seven million, seven hundred ninety-two thousand, three hundred one".

Divisors: 1 13 169 122294629 1589830177 20667792301