Base | Representation |
---|---|
bin | 1010010010010… |
… | …0111010010001 |
3 | 10000011212210112 |
4 | 2210210322101 |
5 | 42021032201 |
6 | 4140411105 |
7 | 1032464522 |
oct | 244447221 |
9 | 100155715 |
10 | 43142801 |
11 | 22397909 |
12 | 12546a95 |
13 | 8c271b0 |
14 | 5a30849 |
15 | 3bc30bb |
hex | 2924e91 |
43142801 has 8 divisors (see below), whose sum is σ = 46775400. Its totient is φ = 39555072.
The previous prime is 43142797. The next prime is 43142837. The reversal of 43142801 is 10824134.
It can be written as a sum of positive squares in 4 ways, for example, as 6225025 + 36917776 = 2495^2 + 6076^2 .
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 43142801 - 22 = 43142797 is a prime.
It is a super-2 number, since 2×431428012 = 3722602556251202, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (43142881) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9200 + ... + 13073.
It is an arithmetic number, because the mean of its divisors is an integer number (5846925).
Almost surely, 243142801 is an apocalyptic number.
It is an amenable number.
43142801 is a deficient number, since it is larger than the sum of its proper divisors (3632599).
43142801 is a wasteful number, since it uses less digits than its factorization.
43142801 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22435.
The product of its (nonzero) digits is 768, while the sum is 23.
The square root of 43142801 is about 6568.3179734236. The cubic root of 43142801 is about 350.7271982511.
Adding to 43142801 its reverse (10824134), we get a palindrome (53966935).
The spelling of 43142801 in words is "forty-three million, one hundred forty-two thousand, eight hundred one".
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