Base | Representation |
---|---|
bin | 11010000111010… |
… | …110010101000000 |
3 | 1010112102111222011 |
4 | 122013112111000 |
5 | 1344130242310 |
6 | 111250422304 |
7 | 13600035556 |
oct | 3207262500 |
9 | 1115374864 |
10 | 438134080 |
11 | 20535168a |
12 | 102891994 |
13 | 6ca03a47 |
14 | 4228dbd6 |
15 | 286e778a |
hex | 1a1d6540 |
438134080 has 28 divisors (see below), whose sum is σ = 1043307540. Its totient is φ = 175253504.
The previous prime is 438134071. The next prime is 438134089. The reversal of 438134080 is 80431834.
It is an interprime number because it is at equal distance from previous prime (438134071) and next prime (438134089).
It can be written as a sum of positive squares in 2 ways, for example, as 56791296 + 381342784 = 7536^2 + 19528^2 .
It is a super-2 number, since 2×4381340802 = 383922944114892800, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (438134089) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684265 + ... + 684904.
Almost surely, 2438134080 is an apocalyptic number.
438134080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
438134080 is an abundant number, since it is smaller than the sum of its proper divisors (605173460).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
438134080 is a wasteful number, since it uses less digits than its factorization.
438134080 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1369186 (or 1369176 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 31.
The square root of 438134080 is about 20931.6525864538. The cubic root of 438134080 is about 759.5138164712.
The spelling of 438134080 in words is "four hundred thirty-eight million, one hundred thirty-four thousand, eighty".
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