Base | Representation |
---|---|
bin | 11100001011001000… |
… | …100010110011001111 |
3 | 2220002021122111000110 |
4 | 130023020202303033 |
5 | 443423344411033 |
6 | 21521455531103 |
7 | 2120443006230 |
oct | 341310426317 |
9 | 86067574013 |
10 | 30251560143 |
11 | 11914242982 |
12 | 5a43229a93 |
13 | 2b1153295c |
14 | 166da0d087 |
15 | bc0c6a363 |
hex | 70b222ccf |
30251560143 has 16 divisors (see below), whose sum is σ = 46331619840. Its totient is φ = 17198854176.
The previous prime is 30251560133. The next prime is 30251560169. The reversal of 30251560143 is 34106515203.
It is not a de Polignac number, because 30251560143 - 28 = 30251559887 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 30251560143.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30251560123) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3652083 + ... + 3660356.
It is an arithmetic number, because the mean of its divisors is an integer number (2895726240).
Almost surely, 230251560143 is an apocalyptic number.
30251560143 is a deficient number, since it is larger than the sum of its proper divisors (16080059697).
30251560143 is a wasteful number, since it uses less digits than its factorization.
30251560143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7312646.
The product of its (nonzero) digits is 10800, while the sum is 30.
The spelling of 30251560143 in words is "thirty billion, two hundred fifty-one million, five hundred sixty thousand, one hundred forty-three".
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