Base | Representation |
---|---|
bin | 111001011111… |
… | …1001010110010 |
3 | 2002201102122010 |
4 | 1302333022302 |
5 | 30204040104 |
6 | 2554023350 |
7 | 514132626 |
oct | 162771262 |
9 | 62642563 |
10 | 30143154 |
11 | 16018aa8 |
12 | a117b56 |
13 | 63251b2 |
14 | 4009186 |
15 | 29a6489 |
hex | 1cbf2b2 |
30143154 has 8 divisors (see below), whose sum is σ = 60286320. Its totient is φ = 10047716.
The previous prime is 30143153. The next prime is 30143173. The reversal of 30143154 is 45134103.
It is a sphenic number, since it is the product of 3 distinct primes.
30143154 is an admirable number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30143154.
It is not an unprimeable number, because it can be changed into a prime (30143153) 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, 2511924 + ... + 2511935.
It is an arithmetic number, because the mean of its divisors is an integer number (7535790).
Almost surely, 230143154 is an apocalyptic number.
30143154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30143154 is a wasteful number, since it uses less digits than its factorization.
30143154 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5023864.
The product of its (nonzero) digits is 720, while the sum is 21.
The square root of 30143154 is about 5490.2781350310. The cubic root of 30143154 is about 311.2167029428.
Adding to 30143154 its reverse (45134103), we get a palindrome (75277257).
The spelling of 30143154 in words is "thirty million, one hundred forty-three thousand, one hundred fifty-four".
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