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20752285086720 = 210335112171923167
BaseRepresentation
bin1001011011111110001001…
…00101001011010000000000
32201110220021102120111201000
410231333010211023100000
510210001134440233340
6112045245042212000
74241205653530365
oct455770445132000
981426242514630
1020752285086720
116680aa3a14200
1223b1b22354000
13b76c16a437c5
1451a5b755c46c
1525ec3420ad30
hex12dfc494b400

20752285086720 has 4224 divisors, whose sum is σ = 94842665164800. Its totient is φ = 4264993751040.

The previous prime is 20752285086713. The next prime is 20752285086751. The reversal of 20752285086720 is 2768058225702.

20752285086720 is a `hidden beast` number, since 2 + 0 + 7 + 52 + 2 + 8 + 508 + 67 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (4224).

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 124265180077 + ... + 124265180243.

Almost surely, 220752285086720 is an apocalyptic number.

20752285086720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20752285086720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47421332582400).

20752285086720 is an abundant number, since it is smaller than the sum of its proper divisors (74090380078080).

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

20752285086720 is a wasteful number, since it uses less digits than its factorization.

20752285086720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 7526400, while the sum is 54.

The spelling of 20752285086720 in words is "twenty trillion, seven hundred fifty-two billion, two hundred eighty-five million, eighty-six thousand, seven hundred twenty".