Base | Representation |
---|---|
bin | 1010001111001… |
… | …00111001000111 |
3 | 12222120202111211 |
4 | 11013210321013 |
5 | 133440402244 |
6 | 12304312251 |
7 | 2061621160 |
oct | 507447107 |
9 | 188522454 |
10 | 85872199 |
11 | 44522066 |
12 | 24912687 |
13 | 14a3816a |
14 | b594767 |
15 | 7813934 |
hex | 51e4e47 |
85872199 has 8 divisors (see below), whose sum is σ = 99803520. Its totient is φ = 72356856.
The previous prime is 85872197. The next prime is 85872217. The reversal of 85872199 is 99127858.
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 85872199 - 21 = 85872197 is a prime.
It is a super-2 number, since 2×858721992 = 14748069122191202, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85872197) 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, 103549 + ... + 104374.
It is an arithmetic number, because the mean of its divisors is an integer number (12475440).
Almost surely, 285872199 is an apocalyptic number.
85872199 is a deficient number, since it is larger than the sum of its proper divisors (13931321).
85872199 is a wasteful number, since it uses less digits than its factorization.
85872199 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 207989.
The product of its digits is 362880, while the sum is 49.
The square root of 85872199 is about 9266.7253655215. The cubic root of 85872199 is about 441.1817389129.
The spelling of 85872199 in words is "eighty-five million, eight hundred seventy-two thousand, one hundred ninety-nine".
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