Base | Representation |
---|---|
bin | 11100001000001000… |
… | …100011101101010101 |
3 | 2212221202221120002001 |
4 | 130020020203231111 |
5 | 443323003412323 |
6 | 21512501115301 |
7 | 2116262144455 |
oct | 341010435525 |
9 | 85852846061 |
10 | 30201232213 |
11 | 11898898849 |
12 | 5a2a3b8b31 |
13 | 2b03c91209 |
14 | 166706bd65 |
15 | bbb6283ad |
hex | 708223b55 |
30201232213 has 4 divisors (see below), whose sum is σ = 30201628428. Its totient is φ = 30200836000.
The previous prime is 30201232211. The next prime is 30201232267. The reversal of 30201232213 is 31223210203.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31223210203 = 40813 ⋅765031.
It can be written as a sum of positive squares in 2 ways, for example, as 7293501604 + 22907730609 = 85402^2 + 151353^2 .
It is a cyclic number.
It is not a de Polignac number, because 30201232213 - 21 = 30201232211 is a prime.
It is a super-2 number, since 2×302012322132 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30201232211) 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, 43606 + ... + 249607.
It is an arithmetic number, because the mean of its divisors is an integer number (7550407107).
Almost surely, 230201232213 is an apocalyptic number.
It is an amenable number.
30201232213 is a deficient number, since it is larger than the sum of its proper divisors (396215).
30201232213 is a wasteful number, since it uses less digits than its factorization.
30201232213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 396214.
The product of its (nonzero) digits is 432, while the sum is 19.
Adding to 30201232213 its reverse (31223210203), we get a palindrome (61424442416).
The spelling of 30201232213 in words is "thirty billion, two hundred one million, two hundred thirty-two thousand, two hundred thirteen".
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