Base | Representation |
---|---|
bin | 111001101001… |
… | …1101010110001 |
3 | 2002212200211000 |
4 | 1303103222301 |
5 | 30214231441 |
6 | 2555512213 |
7 | 514632501 |
oct | 163235261 |
9 | 62780730 |
10 | 30227121 |
11 | 160760a1 |
12 | a158669 |
13 | 6354492 |
14 | 402ba01 |
15 | 29c12b6 |
hex | 1cd3ab1 |
30227121 has 8 divisors (see below), whose sum is σ = 44780960. Its totient is φ = 20151396.
The previous prime is 30227111. The next prime is 30227149. The reversal of 30227121 is 12172203.
It is not a de Polignac number, because 30227121 - 27 = 30226993 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30227094 and 30227103.
It is not an unprimeable number, because it can be changed into a prime (30227111) 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, 559735 + ... + 559788.
It is an arithmetic number, because the mean of its divisors is an integer number (5597620).
Almost surely, 230227121 is an apocalyptic number.
It is an amenable number.
30227121 is a deficient number, since it is larger than the sum of its proper divisors (14553839).
30227121 is a wasteful number, since it uses less digits than its factorization.
30227121 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1119532 (or 1119526 counting only the distinct ones).
The product of its (nonzero) digits is 168, while the sum is 18.
The square root of 30227121 is about 5497.9196974856. The cubic root of 30227121 is about 311.5054109077.
Adding to 30227121 its reverse (12172203), we get a palindrome (42399324).
The spelling of 30227121 in words is "thirty million, two hundred twenty-seven thousand, one hundred twenty-one".
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