Base | Representation |
---|---|
bin | 1010001110110… |
… | …10111010000101 |
3 | 12222111200102002 |
4 | 11013122322011 |
5 | 133433100201 |
6 | 12303355045 |
7 | 2061361013 |
oct | 507327205 |
9 | 188450362 |
10 | 85831301 |
11 | 444a4366 |
12 | 248b2a85 |
13 | 14a2266a |
14 | b5838b3 |
15 | 780676b |
hex | 51dae85 |
85831301 has 4 divisors (see below), whose sum is σ = 86407500. Its totient is φ = 85255104.
The previous prime is 85831267. The next prime is 85831307. The reversal of 85831301 is 10313858.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10313858 = 2 ⋅5156929.
It can be written as a sum of positive squares in 2 ways, for example, as 15288100 + 70543201 = 3910^2 + 8399^2 .
It is a cyclic number.
It is not a de Polignac number, because 85831301 - 218 = 85569157 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85831307) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287876 + ... + 288173.
It is an arithmetic number, because the mean of its divisors is an integer number (21601875).
Almost surely, 285831301 is an apocalyptic number.
It is an amenable number.
85831301 is a deficient number, since it is larger than the sum of its proper divisors (576199).
85831301 is a wasteful number, since it uses less digits than its factorization.
85831301 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 576198.
The product of its (nonzero) digits is 2880, while the sum is 29.
The square root of 85831301 is about 9264.5183900730. The cubic root of 85831301 is about 441.1116878517. Note that the first 3 decimals are identical.
The spelling of 85831301 in words is "eighty-five million, eight hundred thirty-one thousand, three hundred one".
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