Base | Representation |
---|---|
bin | 111001011111… |
… | …1001010110001 |
3 | 2002201102122002 |
4 | 1302333022301 |
5 | 30204040103 |
6 | 2554023345 |
7 | 514132625 |
oct | 162771261 |
9 | 62642562 |
10 | 30143153 |
11 | 16018aa7 |
12 | a117b55 |
13 | 63251b1 |
14 | 4009185 |
15 | 29a6488 |
hex | 1cbf2b1 |
30143153 has 2 divisors, whose sum is σ = 30143154. Its totient is φ = 30143152.
The previous prime is 30143149. The next prime is 30143173. The reversal of 30143153 is 35134103.
It is a happy number.
It is an a-pointer prime, because the next prime (30143173) can be obtained adding 30143153 to its sum of digits (20).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 29669809 + 473344 = 5447^2 + 688^2 .
It is a cyclic number.
It is not a de Polignac number, because 30143153 - 22 = 30143149 is a prime.
It is a Sophie Germain prime.
It is a Curzon number.
It is not a weakly prime, because it can be changed into another prime (30143173) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071576 + 15071577.
It is an arithmetic number, because the mean of its divisors is an integer number (15071577).
Almost surely, 230143153 is an apocalyptic number.
It is an amenable number.
30143153 is a deficient number, since it is larger than the sum of its proper divisors (1).
30143153 is an equidigital number, since it uses as much as digits as its factorization.
30143153 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 540, while the sum is 20.
The square root of 30143153 is about 5490.2780439610. The cubic root of 30143153 is about 311.2166995013.
Adding to 30143153 its reverse (35134103), we get a palindrome (65277256).
The spelling of 30143153 in words is "thirty million, one hundred forty-three thousand, one hundred fifty-three".
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