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20268668382 = 233378111397
BaseRepresentation
bin10010111000000110…
…110101010111011110
31221022120002000222120
4102320012311113132
5313002234342012
613151123523410
71315163560434
oct227006652736
957276060876
1020268668382
118661153606
123b17b29566
131bb0255601
14da3c60d54
157d963b58c
hex4b81b55de

20268668382 has 8 divisors (see below), whose sum is σ = 40537336776. Its totient is φ = 6756222792.

The previous prime is 20268668363. The next prime is 20268668423. The reversal of 20268668382 is 28386686202.

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

20268668382 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1689055693 + ... + 1689055704.

It is an arithmetic number, because the mean of its divisors is an integer number (5067167097).

Almost surely, 220268668382 is an apocalyptic number.

20268668382 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20268668382 is a wasteful number, since it uses less digits than its factorization.

20268668382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378111402.

The product of its (nonzero) digits is 2654208, while the sum is 51.

The spelling of 20268668382 in words is "twenty billion, two hundred sixty-eight million, six hundred sixty-eight thousand, three hundred eighty-two".

Divisors: 1 2 3 6 3378111397 6756222794 10134334191 20268668382