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20092768404390 = 23551129711812017
BaseRepresentation
bin1001001000110001101100…
…10100101100001110100110
32122010211221120120201200000
410210120312110230032212
510113144442202420030
6110422253531002130
74142440350321153
oct444306624541646
978124846521600
1020092768404390
116447327a46340
122306143599346
13b2998081cc06
144d66d0ab722a
1524c9d42aa860
hex12463652c3a6

20092768404390 has 768 divisors, whose sum is σ = 62373689763840. Its totient is φ = 4608866304000.

The previous prime is 20092768404341. The next prime is 20092768404421. The reversal of 20092768404390 is 9340486729002.

20092768404390 is a `hidden beast` number, since 2 + 0 + 0 + 92 + 7 + 68 + 404 + 3 + 90 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 9961708662 + ... + 9961710678.

It is an arithmetic number, because the mean of its divisors is an integer number (81215741880).

Almost surely, 220092768404390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20092768404390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31186844881920).

20092768404390 is an abundant number, since it is smaller than the sum of its proper divisors (42280921359450).

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

20092768404390 is a wasteful number, since it uses less digits than its factorization.

20092768404390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331 (or 2319 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 20092768404390 in words is "twenty trillion, ninety-two billion, seven hundred sixty-eight million, four hundred four thousand, three hundred ninety".