| Base | Representation |
|---|---|
| bin | 111111011010101… |
| … | …001010010000000 |
| 3 | 2202011000020020211 |
| 4 | 333122221102000 |
| 5 | 4134332340230 |
| 6 | 253324043504 |
| 7 | 35236264261 |
| oct | 7732512200 |
| 9 | 2664006224 |
| 10 | 1063949440 |
| 11 | 4a6631a64 |
| 12 | 258393594 |
| 13 | 13c56a9a8 |
| 14 | a1436968 |
| 15 | 6361442a |
| hex | 3f6a9480 |
1063949440 has 64 divisors (see below), whose sum is σ = 2551568760. Its totient is φ = 424230912.
The previous prime is 1063949431. The next prime is 1063949443. The reversal of 1063949440 is 449493601.
It can be written as a sum of positive squares in 4 ways, for example, as 643535424 + 420414016 = 25368^2 + 20504^2 .
It is a tau number, because it is divible by the number of its divisors (64).
It is a super-2 number, since 2×10639494402 = 2263976821752627200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (40).
It is a junction number, because it is equal to n+sod(n) for n = 1063949393 and 1063949402.
It is not an unprimeable number, because it can be changed into a prime (1063949443) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213214 + ... + 218146.
Almost surely, 21063949440 is an apocalyptic number.
1063949440 is a gapful number since it is divisible by the number (10) 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 1063949440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1275784380).
1063949440 is an abundant number, since it is smaller than the sum of its proper divisors (1487619320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1063949440 is an equidigital number, since it uses as much as digits as its factorization.
1063949440 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5289 (or 5277 counting only the distinct ones).
The product of its (nonzero) digits is 93312, while the sum is 40.
The square root of 1063949440 is about 32618.2378432680. The cubic root of 1063949440 is about 1020.8775735966.
The spelling of 1063949440 in words is "one billion, sixty-three million, nine hundred forty-nine thousand, four hundred forty".
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