Base | Representation |
---|---|
bin | 11100001000001000… |
… | …110100100011100100 |
3 | 2212221210002001201212 |
4 | 130020020310203210 |
5 | 443323013114340 |
6 | 21512502410552 |
7 | 2116262552606 |
oct | 341010644344 |
9 | 85853061655 |
10 | 30201301220 |
11 | 11898935682 |
12 | 5a2a430a58 |
13 | 2b03cb674c |
14 | 1667089176 |
15 | bbb63da65 |
hex | 7082348e4 |
30201301220 has 48 divisors (see below), whose sum is σ = 65739265200. Its totient is φ = 11640921600.
The previous prime is 30201301177. The next prime is 30201301241. The reversal of 30201301220 is 2210310203.
It is a happy number.
It can be written as a sum of positive squares in 8 ways, for example, as 45589504 + 30155711716 = 6752^2 + 173654^2 .
It is a junction number, because it is equal to n+sod(n) for n = 30201301195 and 30201301204.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 244070 + ... + 346370.
It is an arithmetic number, because the mean of its divisors is an integer number (1369568025).
Almost surely, 230201301220 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 30201301220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32869632600).
30201301220 is an abundant number, since it is smaller than the sum of its proper divisors (35537963980).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30201301220 is a wasteful number, since it uses less digits than its factorization.
30201301220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 102848 (or 102846 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 30201301220 its reverse (2210310203), we get a palindrome (32411611423).
The spelling of 30201301220 in words is "thirty billion, two hundred one million, three hundred one thousand, two hundred twenty".
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