Base | Representation |
---|---|
bin | 11011100000101… |
… | …11111001101101 |
3 | 121002021001222120 |
4 | 31300113321231 |
5 | 433040101441 |
6 | 34522303153 |
7 | 5501431314 |
oct | 1560277155 |
9 | 532231876 |
10 | 230784621 |
11 | 1092a99a1 |
12 | 65357ab9 |
13 | 38a75462 |
14 | 2291727b |
15 | 153da966 |
hex | dc17e6d |
230784621 has 8 divisors (see below), whose sum is σ = 323908320. Its totient is φ = 145758672.
The previous prime is 230784611. The next prime is 230784623. The reversal of 230784621 is 126487032.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 230784621 - 27 = 230784493 is a prime.
It is a super-2 number, since 2×2307846212 = 106523082580227282, which contains 22 as substring.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230784623) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024370 + ... + 2024483.
It is an arithmetic number, because the mean of its divisors is an integer number (40488540).
Almost surely, 2230784621 is an apocalyptic number.
It is an amenable number.
230784621 is a deficient number, since it is larger than the sum of its proper divisors (93123699).
230784621 is a wasteful number, since it uses less digits than its factorization.
230784621 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4048875.
The product of its (nonzero) digits is 16128, while the sum is 33.
The square root of 230784621 is about 15191.5970523181. The cubic root of 230784621 is about 613.3884890209.
The spelling of 230784621 in words is "two hundred thirty million, seven hundred eighty-four thousand, six hundred twenty-one".
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