Base | Representation |
---|---|
bin | 11011100010010… |
… | …01000010001111 |
3 | 121002122022001021 |
4 | 31301021002033 |
5 | 433113021441 |
6 | 34530455011 |
7 | 5503230124 |
oct | 1561110217 |
9 | 532568037 |
10 | 230985871 |
11 | 109427116 |
12 | 65434467 |
13 | 38b15c3c |
14 | 2296a74b |
15 | 1542a3d1 |
hex | dc4908f |
230985871 has 8 divisors (see below), whose sum is σ = 236378304. Its totient is φ = 225613440.
The previous prime is 230985863. The next prime is 230985877. The reversal of 230985871 is 178589032.
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 230985871 - 23 = 230985863 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 (230985877) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19771 + ... + 29203.
It is an arithmetic number, because the mean of its divisors is an integer number (29547288).
Almost surely, 2230985871 is an apocalyptic number.
230985871 is a deficient number, since it is larger than the sum of its proper divisors (5392433).
230985871 is an equidigital number, since it uses as much as digits as its factorization.
230985871 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10001.
The product of its (nonzero) digits is 120960, while the sum is 43.
The square root of 230985871 is about 15198.2193364881. The cubic root of 230985871 is about 613.5667339548.
The spelling of 230985871 in words is "two hundred thirty million, nine hundred eighty-five thousand, eight hundred seventy-one".
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