Base | Representation |
---|---|
bin | 1000010101110000110… |
… | …1001001010000101111 |
3 | 111200211111020100220110 |
4 | 2011130031021100233 |
5 | 4321414400323242 |
6 | 145453342151103 |
7 | 13231430206161 |
oct | 2053415112057 |
9 | 450744210813 |
10 | 143280870447 |
11 | 55846352720 |
12 | 23928582493 |
13 | 10685507160 |
14 | 6d13268931 |
15 | 3ad8c9639c |
hex | 215c34942f |
143280870447 has 32 divisors (see below), whose sum is σ = 224571384576. Its totient is φ = 80110195200.
The previous prime is 143280870437. The next prime is 143280870461. The reversal of 143280870447 is 744078082341.
It is not a de Polignac number, because 143280870447 - 27 = 143280870319 is a prime.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a junction number, because it is equal to n+sod(n) for n = 143280870396 and 143280870405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (143280870437) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642247 + ... + 836087.
It is an arithmetic number, because the mean of its divisors is an integer number (7017855768).
Almost surely, 2143280870447 is an apocalyptic number.
143280870447 is a deficient number, since it is larger than the sum of its proper divisors (81290514129).
143280870447 is a wasteful number, since it uses less digits than its factorization.
143280870447 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 195591.
The product of its (nonzero) digits is 1204224, while the sum is 48.
The spelling of 143280870447 in words is "one hundred forty-three billion, two hundred eighty million, eight hundred seventy thousand, four hundred forty-seven".
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