Base | Representation |
---|---|
bin | 10010110100000101… |
… | …011101100110100000 |
3 | 1221010212010021210210 |
4 | 102310011131212200 |
5 | 312333001400112 |
6 | 13140313454120 |
7 | 1313414236626 |
oct | 226405354640 |
9 | 57125107723 |
10 | 20201200032 |
11 | 8627061642 |
12 | 3ab9411340 |
13 | 1b9c292200 |
14 | d98cdb516 |
15 | 7d3760b3c |
hex | 4b415d9a0 |
20201200032 has 144 divisors (see below), whose sum is σ = 57718785600. Its totient is φ = 6183530496.
The previous prime is 20201200031. The next prime is 20201200037. The reversal of 20201200032 is 23000210202.
It is a Harshad number since it is a multiple of its sum of digits (12).
It is a junction number, because it is equal to n+sod(n) for n = 20201199990 and 20201200017.
It is not an unprimeable number, because it can be changed into a prime (20201200031) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3225448 + ... + 3231704.
It is an arithmetic number, because the mean of its divisors is an integer number (400824900).
Almost surely, 220201200032 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 20201200032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28859392800).
20201200032 is an abundant number, since it is smaller than the sum of its proper divisors (37517585568).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20201200032 is a wasteful number, since it uses less digits than its factorization.
20201200032 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6495 (or 6474 counting only the distinct ones).
The product of its (nonzero) digits is 48, while the sum is 12.
Adding to 20201200032 its reverse (23000210202), we get a palindrome (43201410234).
The spelling of 20201200032 in words is "twenty billion, two hundred one million, two hundred thousand, thirty-two".
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