Base | Representation |
---|---|
bin | 111110100101110… |
… | …1000101010011111 |
3 | 12102100220022201120 |
4 | 1331023220222133 |
5 | 13300122432033 |
6 | 544222342023 |
7 | 103021265214 |
oct | 17513505237 |
9 | 5370808646 |
10 | 2100202143 |
11 | 988566a56 |
12 | 4a742a913 |
13 | 27615bb80 |
14 | 15ccddb0b |
15 | c45a71b3 |
hex | 7d2e8a9f |
2100202143 has 16 divisors (see below), whose sum is σ = 3025327200. Its totient is φ = 1288295424.
The previous prime is 2100202141. The next prime is 2100202157. The reversal of 2100202143 is 3412020012.
It is not a de Polignac number, because 2100202143 - 21 = 2100202141 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2100202141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73818 + ... + 98231.
It is an arithmetic number, because the mean of its divisors is an integer number (189082950).
Almost surely, 22100202143 is an apocalyptic number.
2100202143 is a deficient number, since it is larger than the sum of its proper divisors (925125057).
2100202143 is a wasteful number, since it uses less digits than its factorization.
2100202143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 172378.
The product of its (nonzero) digits is 96, while the sum is 15.
The square root of 2100202143 is about 45827.9624574342. The cubic root of 2100202143 is about 1280.6202525762.
Adding to 2100202143 its reverse (3412020012), we get a palindrome (5512222155).
The spelling of 2100202143 in words is "two billion, one hundred million, two hundred two thousand, one hundred forty-three".
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