Base | Representation |
---|---|
bin | 11010100111100001001 |
3 | 1122022102202 |
4 | 3110330021 |
5 | 210402301 |
6 | 30405545 |
7 | 10261601 |
oct | 3247411 |
9 | 1568382 |
10 | 872201 |
11 | 546330 |
12 | 3608b5 |
13 | 246cc5 |
14 | 189c01 |
15 | 12366b |
hex | d4f09 |
872201 has 8 divisors (see below), whose sum is σ = 977664. Its totient is φ = 771120.
The previous prime is 872189. The next prime is 872203. The reversal of 872201 is 102278.
872201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 872201 - 210 = 871177 is a prime.
It is a Duffinian number.
It is a plaindrome in base 15.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (872203) 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, 665 + ... + 1478.
It is an arithmetic number, because the mean of its divisors is an integer number (122208).
2872201 is an apocalyptic number.
It is an amenable number.
872201 is a deficient number, since it is larger than the sum of its proper divisors (105463).
872201 is a wasteful number, since it uses less digits than its factorization.
872201 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2191.
The product of its (nonzero) digits is 224, while the sum is 20.
The square root of 872201 is about 933.9170198685. The cubic root of 872201 is about 95.5444636385.
Adding to 872201 its reverse (102278), we get a palindrome (974479).
The spelling of 872201 in words is "eight hundred seventy-two thousand, two hundred one".
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