Base | Representation |
---|---|
bin | 1101001000111… |
… | …0001000101111 |
3 | 10211200210011100 |
4 | 3102032020233 |
5 | 103101430033 |
6 | 5245054143 |
7 | 1236261066 |
oct | 322161057 |
9 | 124623140 |
10 | 55108143 |
11 | 2911a622 |
12 | 16557353 |
13 | b55648c |
14 | 74671dd |
15 | 4c88513 |
hex | 348e22f |
55108143 has 6 divisors (see below), whose sum is σ = 79600664. Its totient is φ = 36738756.
The previous prime is 55108127. The next prime is 55108153. The reversal of 55108143 is 34180155.
55108143 is a `hidden beast` number, since 5 + 510 + 8 + 143 = 666.
55108143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 55108143 - 24 = 55108127 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (55108153) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3061555 + ... + 3061572.
Almost surely, 255108143 is an apocalyptic number.
55108143 is a deficient number, since it is larger than the sum of its proper divisors (24492521).
55108143 is a wasteful number, since it uses less digits than its factorization.
55108143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6123133 (or 6123130 counting only the distinct ones).
The product of its (nonzero) digits is 2400, while the sum is 27.
The square root of 55108143 is about 7423.4859062303. The cubic root of 55108143 is about 380.5443330067.
Adding to 55108143 its reverse (34180155), we get a palindrome (89288298).
The spelling of 55108143 in words is "fifty-five million, one hundred eight thousand, one hundred forty-three".
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