Base | Representation |
---|---|
bin | 11010011101101… |
… | …110100010101111 |
3 | 1010221110120002102 |
4 | 122131232202233 |
5 | 1402131003211 |
6 | 112020245315 |
7 | 14000640620 |
oct | 3235564257 |
9 | 1127416072 |
10 | 444000431 |
11 | 208699106 |
12 | 10484083b |
13 | 70ca8c64 |
14 | 42d79a47 |
15 | 28ea5a3b |
hex | 1a76e8af |
444000431 has 8 divisors (see below), whose sum is σ = 507959424. Its totient is φ = 380174040.
The previous prime is 444000419. The next prime is 444000437. The reversal of 444000431 is 134000444.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 444000431 - 210 = 443999407 is a prime.
It is a super-2 number, since 2×4440004312 = 394272765456371522, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (444000437) 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, 25865 + ... + 39458.
It is an arithmetic number, because the mean of its divisors is an integer number (63494928).
Almost surely, 2444000431 is an apocalyptic number.
444000431 is a deficient number, since it is larger than the sum of its proper divisors (63958993).
444000431 is an equidigital number, since it uses as much as digits as its factorization.
444000431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 66301.
The product of its (nonzero) digits is 768, while the sum is 20.
The square root of 444000431 is about 21071.3177328804. The cubic root of 444000431 is about 762.8886094357. Note that the first 3 decimals are identical.
Adding to 444000431 its reverse (134000444), we get a palindrome (578000875).
The spelling of 444000431 in words is "four hundred forty-four million, four hundred thirty-one", and thus it is an aban number.
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