Base | Representation |
---|---|
bin | 10011000100111100… |
… | …011111010010011000 |
3 | 1221212120101002011110 |
4 | 103010330133102120 |
5 | 313422404412222 |
6 | 13224340300320 |
7 | 1323420432312 |
oct | 230474372230 |
9 | 57776332143 |
10 | 20484060312 |
11 | 8761799771 |
12 | 3b780a16a0 |
13 | 1c15a6b761 |
14 | dc46cc7b2 |
15 | 7ed4d630c |
hex | 4c4f1f498 |
20484060312 has 64 divisors (see below), whose sum is σ = 52664359680. Its totient is φ = 6636536192.
The previous prime is 20484060253. The next prime is 20484060313. The reversal of 20484060312 is 21306048402.
It is a self number, because there is not a number n which added to its sum of digits gives 20484060312.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20484060313) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60853 + ... + 211355.
It is an arithmetic number, because the mean of its divisors is an integer number (822880620).
Almost surely, 220484060312 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 20484060312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26332179840).
20484060312 is an abundant number, since it is smaller than the sum of its proper divisors (32180299368).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20484060312 is a wasteful number, since it uses less digits than its factorization.
20484060312 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 150672 (or 150668 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 30.
The spelling of 20484060312 in words is "twenty billion, four hundred eighty-four million, sixty thousand, three hundred twelve".
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