Base | Representation |
---|---|
bin | 100100010011100000… |
… | …110101101100000000 |
3 | 10201121201122220112011 |
4 | 210103200311230000 |
5 | 1114313403100110 |
6 | 25524053142304 |
7 | 2550004136512 |
oct | 442340655400 |
9 | 121551586464 |
10 | 38982081280 |
11 | 155944066aa |
12 | 767b02a994 |
13 | 38a32103ac |
14 | 1c5b317bb2 |
15 | 103246648a |
hex | 913835b00 |
38982081280 has 72 divisors (see below), whose sum is σ = 93577361472. Its totient is φ = 15558918144.
The previous prime is 38982081199. The next prime is 38982081317. The reversal of 38982081280 is 8218028983.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 559752 + ... + 625528.
It is an arithmetic number, because the mean of its divisors is an integer number (1299685576).
Almost surely, 238982081280 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 38982081280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46788680736).
38982081280 is an abundant number, since it is smaller than the sum of its proper divisors (54595280192).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
38982081280 is an equidigital number, since it uses as much as digits as its factorization.
38982081280 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 66261 (or 66247 counting only the distinct ones).
The product of its (nonzero) digits is 442368, while the sum is 49.
The spelling of 38982081280 in words is "thirty-eight billion, nine hundred eighty-two million, eighty-one thousand, two hundred eighty".
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