Base | Representation |
---|---|
bin | 111001101010… |
… | …0101110000110 |
3 | 2002212220201121 |
4 | 1303110232012 |
5 | 30214401210 |
6 | 2555544154 |
7 | 514651165 |
oct | 163245606 |
9 | 62786647 |
10 | 30231430 |
11 | 16079359 |
12 | a15b05a |
13 | 6356428 |
14 | 402d3dc |
15 | 29c26da |
hex | 1cd4b86 |
30231430 has 16 divisors (see below), whose sum is σ = 56782944. Its totient is φ = 11566720.
The previous prime is 30231403. The next prime is 30231433. The reversal of 30231430 is 3413203.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30231433) 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, 65491 + ... + 65950.
It is an arithmetic number, because the mean of its divisors is an integer number (3548934).
Almost surely, 230231430 is an apocalyptic number.
30231430 is a deficient number, since it is larger than the sum of its proper divisors (26551514).
30231430 is a wasteful number, since it uses less digits than its factorization.
30231430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 131471.
The product of its (nonzero) digits is 216, while the sum is 16.
The square root of 30231430 is about 5498.3115590152. The cubic root of 30231430 is about 311.5202123288.
Adding to 30231430 its reverse (3413203), we get a palindrome (33644633).
The spelling of 30231430 in words is "thirty million, two hundred thirty-one thousand, four hundred thirty".
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