Base | Representation |
---|---|
bin | 1001011111101101010111… |
… | …00010011000101110000000 |
3 | 2201221011202212010102121100 |
4 | 10233312223202120232000 |
5 | 10214102200232201221 |
6 | 112224244554254400 |
7 | 4253403362023500 |
oct | 457665342305600 |
9 | 81834685112540 |
10 | 20880713943936 |
11 | 6720508731520 |
12 | 24129a4a27400 |
13 | b86073277342 |
14 | 5228bc0c5a00 |
15 | 26324e170926 |
hex | 12fdab898b80 |
20880713943936 has 288 divisors, whose sum is σ = 76250684535480. Its totient is φ = 5423561902080.
The previous prime is 20880713943899. The next prime is 20880713943941. The reversal of 20880713943936 is 63934931708802.
20880713943936 is a `hidden beast` number, since 20 + 8 + 80 + 71 + 3 + 9 + 439 + 36 = 666.
It is a tau number, because it is divible by the number of its divisors (288).
It is a Harshad number since it is a multiple of its sum of digits (63).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 16193191 + ... + 17435046.
Almost surely, 220880713943936 is an apocalyptic number.
It is an amenable number.
20880713943936 is an abundant number, since it is smaller than the sum of its proper divisors (55369970591544).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20880713943936 is a wasteful number, since it uses less digits than its factorization.
20880713943936 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33628282 (or 33628260 counting only the distinct ones).
The product of its (nonzero) digits is 47029248, while the sum is 63.
The spelling of 20880713943936 in words is "twenty trillion, eight hundred eighty billion, seven hundred thirteen million, nine hundred forty-three thousand, nine hundred thirty-six".
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