Base | Representation |
---|---|
bin | 1000000111111… |
… | …10111100001111 |
3 | 11202020112111000 |
4 | 10003332330033 |
5 | 114421344403 |
6 | 10432431343 |
7 | 1455202044 |
oct | 403767417 |
9 | 152215430 |
10 | 68153103 |
11 | 3551a487 |
12 | 1a9a8553 |
13 | 11172ca5 |
14 | 90a11cb |
15 | 5eb37a3 |
hex | 40fef0f |
68153103 has 16 divisors (see below), whose sum is σ = 104450400. Its totient is φ = 43868160.
The previous prime is 68153101. The next prime is 68153123. The reversal of 68153103 is 30135186.
It is not a de Polignac number, because 68153103 - 21 = 68153101 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68153101) 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, 42738 + ... + 44303.
It is an arithmetic number, because the mean of its divisors is an integer number (6528150).
Almost surely, 268153103 is an apocalyptic number.
68153103 is a deficient number, since it is larger than the sum of its proper divisors (36297297).
68153103 is a wasteful number, since it uses less digits than its factorization.
68153103 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 87079 (or 87073 counting only the distinct ones).
The product of its (nonzero) digits is 2160, while the sum is 27.
The square root of 68153103 is about 8255.4892647256. The cubic root of 68153103 is about 408.4716107928.
Adding to 68153103 its reverse (30135186), we get a palindrome (98288289).
The spelling of 68153103 in words is "sixty-eight million, one hundred fifty-three thousand, one hundred three".
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