Base | Representation |
---|---|
bin | 1000101100000… |
… | …01100100001111 |
3 | 12002010210220220 |
4 | 10112001210033 |
5 | 122124214242 |
6 | 11122042423 |
7 | 1543330161 |
oct | 426014417 |
9 | 162123826 |
10 | 72882447 |
11 | 3815a730 |
12 | 204a9413 |
13 | 1213a811 |
14 | 9972931 |
15 | 65e9bec |
hex | 458190f |
72882447 has 8 divisors (see below), whose sum is σ = 106010880. Its totient is φ = 44171160.
The previous prime is 72882437. The next prime is 72882449. The reversal of 72882447 is 74428827.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 72882447 - 24 = 72882431 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 72882399 and 72882408.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (72882449) 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, 1104247 + ... + 1104312.
It is an arithmetic number, because the mean of its divisors is an integer number (13251360).
Almost surely, 272882447 is an apocalyptic number.
72882447 is a deficient number, since it is larger than the sum of its proper divisors (33128433).
72882447 is a wasteful number, since it uses less digits than its factorization.
72882447 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2208573.
The product of its digits is 200704, while the sum is 42.
The square root of 72882447 is about 8537.1217046496. The cubic root of 72882447 is about 417.7094640174.
The spelling of 72882447 in words is "seventy-two million, eight hundred eighty-two thousand, four hundred forty-seven".
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