Base | Representation |
---|---|
bin | 111001100110… |
… | …1110110001000 |
3 | 2002211111002201 |
4 | 1303031312020 |
5 | 30213001042 |
6 | 2555205544 |
7 | 514503121 |
oct | 163156610 |
9 | 62744081 |
10 | 30203272 |
11 | 1605a190 |
12 | a1468b4 |
13 | 6346678 |
14 | 4023048 |
15 | 29b91b7 |
hex | 1ccdd88 |
30203272 has 16 divisors (see below), whose sum is σ = 61779600. Its totient is φ = 13728720.
The previous prime is 30203233. The next prime is 30203273. The reversal of 30203272 is 27230203.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (30203273) 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 3 ways as a sum of consecutive naturals, for example, 171522 + ... + 171697.
It is an arithmetic number, because the mean of its divisors is an integer number (3861225).
Almost surely, 230203272 is an apocalyptic number.
It is an amenable number.
30203272 is an abundant number, since it is smaller than the sum of its proper divisors (31576328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30203272 is a wasteful number, since it uses less digits than its factorization.
30203272 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 343236 (or 343232 counting only the distinct ones).
The product of its (nonzero) digits is 504, while the sum is 19.
The square root of 30203272 is about 5495.7503582313. The cubic root of 30203272 is about 311.4234641108.
Adding to 30203272 its reverse (27230203), we get a palindrome (57433475).
It can be divided in two parts, 30 and 203272, that added together give a palindrome (203302).
The spelling of 30203272 in words is "thirty million, two hundred three thousand, two hundred seventy-two".
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