Base | Representation |
---|---|
bin | 111001101010… |
… | …1001000110101 |
3 | 2002220000001222 |
4 | 1303111020311 |
5 | 30214430031 |
6 | 3000000125 |
7 | 514656161 |
oct | 163251065 |
9 | 62800058 |
10 | 30233141 |
11 | 1607a674 |
12 | a160045 |
13 | 6357143 |
14 | 402dca1 |
15 | 29c2e7b |
hex | 1cd5235 |
30233141 has 2 divisors, whose sum is σ = 30233142. Its totient is φ = 30233140.
The previous prime is 30233131. The next prime is 30233197. The reversal of 30233141 is 14133203.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 16200625 + 14032516 = 4025^2 + 3746^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30233141 is a prime.
It is a super-3 number, since 3×302331413 (a number of 23 digits) contains 333 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30233101) 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 as a sum of consecutive naturals, namely, 15116570 + 15116571.
It is an arithmetic number, because the mean of its divisors is an integer number (15116571).
Almost surely, 230233141 is an apocalyptic number.
It is an amenable number.
30233141 is a deficient number, since it is larger than the sum of its proper divisors (1).
30233141 is an equidigital number, since it uses as much as digits as its factorization.
30233141 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 30233141 is about 5498.4671500337. The cubic root of 30233141 is about 311.5260892261.
Adding to 30233141 its reverse (14133203), we get a palindrome (44366344).
The spelling of 30233141 in words is "thirty million, two hundred thirty-three thousand, one hundred forty-one".
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