| Base | Representation |
|---|---|
| bin | 1010000001100001… |
| … | …10000010000000000 |
| 3 | 111220001020000000000 |
| 4 | 11000300300100000 |
| 5 | 42010130132124 |
| 6 | 2250000000000 |
| 7 | 250233623145 |
| oct | 50060602000 |
| 9 | 14801200000 |
| 10 | 5381489664 |
| 11 | 231178a921 |
| 12 | 1062300000 |
| 13 | 679bbbb15 |
| 14 | 390a083cc |
| 15 | 2176b06c9 |
| hex | 140c30400 |
5381489664 has 242 divisors, whose sum is σ = 16317803790. Its totient is φ = 1773674496.
The previous prime is 5381489657. The next prime is 5381489669. The reversal of 5381489664 is 4669841835.
5381489664 is a `hidden beast` number, since 538 + 1 + 48 + 9 + 6 + 64 = 666.
It can be written as a sum of positive squares in only one way, i.e., 3869835264 + 1511654400 = 62208^2 + 38880^2 .
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a self number, because there is not a number n which added to its sum of digits gives 5381489664.
It is not an unprimeable number, because it can be changed into a prime (5381489669) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 21 ways as a sum of consecutive naturals, for example, 60466132 + ... + 60466220.
Almost surely, 25381489664 is an apocalyptic number.
5381489664 is a gapful number since it is divisible by the number (54) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 5381489664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8158901895).
5381489664 is an abundant number, since it is smaller than the sum of its proper divisors (10936314126).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
5381489664 is an frugal number, since it uses more digits than its factorization.
5381489664 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 139 (or 94 counting only the distinct ones).
The product of its digits is 4976640, while the sum is 54.
The square root of 5381489664 is about 73358.6372828722. The cubic root of 5381489664 is about 1752.4037350655.
The spelling of 5381489664 in words is "five billion, three hundred eighty-one million, four hundred eighty-nine thousand, six hundred sixty-four".
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