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20747884326271 = 191999546270091
BaseRepresentation
bin1001011011110101111100…
…10001100110110101111111
32201110110220201202201021021
410231322332101212311333
510204413131341420041
6112043240234445011
74240661625634114
oct455727621466577
981413821681237
1020747884326271
11667a1458957a3
1223b10b4593767
13b766950a563b
1451a2bacc690b
1525ea77bc1cd1
hex12debe466d7f

20747884326271 has 8 divisors (see below), whose sum is σ = 21850803680000. Its totient is φ = 19646057516760.

The previous prime is 20747884326241. The next prime is 20747884326329. The reversal of 20747884326271 is 17262348874702.

It is a happy number.

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 20747884326271 - 227 = 20747750108543 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 (20747884326241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273097065 + ... + 273173026.

It is an arithmetic number, because the mean of its divisors is an integer number (2731350460000).

Almost surely, 220747884326271 is an apocalyptic number.

20747884326271 is a deficient number, since it is larger than the sum of its proper divisors (1102919353729).

20747884326271 is a wasteful number, since it uses less digits than its factorization.

20747884326271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546272109.

The product of its (nonzero) digits is 50577408, while the sum is 61.

The spelling of 20747884326271 in words is "twenty trillion, seven hundred forty-seven billion, eight hundred eighty-four million, three hundred twenty-six thousand, two hundred seventy-one".

Divisors: 1 19 1999 37981 546270091 10379131729 1091993911909 20747884326271