Base | Representation |
---|---|
bin | 111010001001… |
… | …0101101001001 |
3 | 2010100210222222 |
4 | 1310102231021 |
5 | 30301012241 |
6 | 3005223425 |
7 | 520056326 |
oct | 164225511 |
9 | 63323888 |
10 | 30485321 |
11 | 16232089 |
12 | a261b75 |
13 | 6414b69 |
14 | 4097b4d |
15 | 2a22a4b |
hex | 1d12b49 |
30485321 has 4 divisors (see below), whose sum is σ = 30546432. Its totient is φ = 30424212.
The previous prime is 30485317. The next prime is 30485333. The reversal of 30485321 is 12358403.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 30485321 - 22 = 30485317 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30485381) 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, 29801 + ... + 30806.
It is an arithmetic number, because the mean of its divisors is an integer number (7636608).
Almost surely, 230485321 is an apocalyptic number.
It is an amenable number.
30485321 is a deficient number, since it is larger than the sum of its proper divisors (61111).
30485321 is an equidigital number, since it uses as much as digits as its factorization.
30485321 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 61110.
The product of its (nonzero) digits is 2880, while the sum is 26.
The square root of 30485321 is about 5521.3513744372. The cubic root of 30485321 is about 312.3898568637.
The spelling of 30485321 in words is "thirty million, four hundred eighty-five thousand, three hundred twenty-one".
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