Base | Representation |
---|---|
bin | 10010111110011101… |
… | …101111111100000000 |
3 | 1221120222210110020000 |
4 | 102332131233330000 |
5 | 313212041320002 |
6 | 13205454120000 |
7 | 1320630343656 |
oct | 227635577400 |
9 | 57528713200 |
10 | 20375338752 |
11 | 870639063a |
12 | 3b477b0000 |
13 | 1bc9393282 |
14 | db40aadd6 |
15 | 7e3bac61c |
hex | 4be76ff00 |
20375338752 has 360 divisors, whose sum is σ = 64937389440. Its totient is φ = 6340239360.
The previous prime is 20375338751. The next prime is 20375338787. The reversal of 20375338752 is 25783357302.
20375338752 is a `hidden beast` number, since 2 + 0 + 37 + 533 + 87 + 5 + 2 = 666.
It is a junction number, because it is equal to n+sod(n) for n = 20375338698 and 20375338707.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20375338751) by changing a digit.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18641118 + ... + 18642210.
Almost surely, 220375338752 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20375338752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32468694720).
20375338752 is an abundant number, since it is smaller than the sum of its proper divisors (44562050688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20375338752 is a wasteful number, since it uses less digits than its factorization.
20375338752 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1181 (or 1158 counting only the distinct ones).
The product of its (nonzero) digits is 1058400, while the sum is 45.
The spelling of 20375338752 in words is "twenty billion, three hundred seventy-five million, three hundred thirty-eight thousand, seven hundred fifty-two".
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