Base | Representation |
---|---|
bin | 111001011111… |
… | …1001001010110 |
3 | 2002201102111201 |
4 | 1302333021112 |
5 | 30204034222 |
6 | 2554023114 |
7 | 514132435 |
oct | 162771126 |
9 | 62642451 |
10 | 30143062 |
11 | 16018a24 |
12 | a117a9a |
13 | 6325141 |
14 | 400911c |
15 | 29a6427 |
hex | 1cbf256 |
30143062 has 4 divisors (see below), whose sum is σ = 45214596. Its totient is φ = 15071530.
The previous prime is 30143051. The next prime is 30143081. The reversal of 30143062 is 26034103.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26034103 = 353 ⋅73751.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7535764 + ... + 7535767.
It is an arithmetic number, because the mean of its divisors is an integer number (11303649).
Almost surely, 230143062 is an apocalyptic number.
30143062 is a deficient number, since it is larger than the sum of its proper divisors (15071534).
30143062 is a wasteful number, since it uses less digits than its factorization.
30143062 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15071533.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 30143062 is about 5490.2697565785. The cubic root of 30143062 is about 311.2163863207.
Adding to 30143062 its reverse (26034103), we get a palindrome (56177165).
The spelling of 30143062 in words is "thirty million, one hundred forty-three thousand, sixty-two".
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