Base | Representation |
---|---|
bin | 111001011010… |
… | …0101010101111 |
3 | 2002122020122010 |
4 | 1302310222233 |
5 | 30201201033 |
6 | 2553052303 |
7 | 513563343 |
oct | 162645257 |
9 | 62566563 |
10 | 30100143 |
11 | 15a99757 |
12 | a0b7093 |
13 | 630b748 |
14 | 3dd7623 |
15 | 2998863 |
hex | 1cb4aaf |
30100143 has 16 divisors (see below), whose sum is σ = 40755200. Its totient is φ = 19758816.
The previous prime is 30100141. The next prime is 30100151. The reversal of 30100143 is 34100103.
It is not a de Polignac number, because 30100143 - 21 = 30100141 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30100141) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75621 + ... + 76017.
It is an arithmetic number, because the mean of its divisors is an integer number (2547200).
Almost surely, 230100143 is an apocalyptic number.
30100143 is a deficient number, since it is larger than the sum of its proper divisors (10655057).
30100143 is a wasteful number, since it uses less digits than its factorization.
30100143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 726.
The product of its (nonzero) digits is 36, while the sum is 12.
The square root of 30100143 is about 5486.3597220744. The cubic root of 30100143 is about 311.0686083613.
Adding to 30100143 its reverse (34100103), we get a palindrome (64200246).
The spelling of 30100143 in words is "thirty million, one hundred thousand, one hundred forty-three".
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