Base | Representation |
---|---|
bin | 10001000011000… |
… | …00000111010111 |
3 | 100222002011011011 |
4 | 20201200013113 |
5 | 243102000043 |
6 | 22104553051 |
7 | 3354323455 |
oct | 1041400727 |
9 | 328064134 |
10 | 143000023 |
11 | 737a1041 |
12 | 3ba82787 |
13 | 2381a9ca |
14 | 14dc59d5 |
15 | c84a59d |
hex | 88601d7 |
143000023 has 4 divisors (see below), whose sum is σ = 150526360. Its totient is φ = 135473688.
The previous prime is 143000021. The next prime is 143000029. The reversal of 143000023 is 320000341.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320000341 = 1171 ⋅273271.
It is a cyclic number.
It is not a de Polignac number, because 143000023 - 21 = 143000021 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 142999967 and 143000012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (143000021) 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 3 ways as a sum of consecutive naturals, for example, 3763140 + ... + 3763177.
It is an arithmetic number, because the mean of its divisors is an integer number (37631590).
Almost surely, 2143000023 is an apocalyptic number.
143000023 is a deficient number, since it is larger than the sum of its proper divisors (7526337).
143000023 is an equidigital number, since it uses as much as digits as its factorization.
143000023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7526336.
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 143000023 is about 11958.2617047797. The cubic root of 143000023 is about 522.9321812116.
Adding to 143000023 its reverse (320000341), we get a palindrome (463000364).
The spelling of 143000023 in words is "one hundred forty-three million, twenty-three", and thus it is an aban number.
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