Base | Representation |
---|---|
bin | 1100010010100… |
… | …11101010100111 |
3 | 21012000011220221 |
4 | 12021103222213 |
5 | 202343300033 |
6 | 14121505211 |
7 | 2361235153 |
oct | 611235247 |
9 | 235004827 |
10 | 103103143 |
11 | 53220a10 |
12 | 2a642207 |
13 | 1848c0a0 |
14 | d99c063 |
15 | 90b912d |
hex | 6253aa7 |
103103143 has 16 divisors (see below), whose sum is σ = 122393376. Its totient is φ = 85616640.
The previous prime is 103103141. The next prime is 103103183. The reversal of 103103143 is 341301301.
It is a cyclic number.
It is not a de Polignac number, because 103103143 - 21 = 103103141 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 (103103141) 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, 10155 + ... + 17587.
It is an arithmetic number, because the mean of its divisors is an integer number (7649586).
Almost surely, 2103103143 is an apocalyptic number.
103103143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.
103103143 is a deficient number, since it is larger than the sum of its proper divisors (19290233).
103103143 is a wasteful number, since it uses less digits than its factorization.
103103143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7554.
The product of its (nonzero) digits is 108, while the sum is 16.
The square root of 103103143 is about 10153.9717844792. The cubic root of 103103143 is about 468.9112311026.
Adding to 103103143 its reverse (341301301), we get a palindrome (444404444).
The spelling of 103103143 in words is "one hundred three million, one hundred three thousand, one hundred forty-three".
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