Base | Representation |
---|---|
bin | 1100001011110… |
… | …00001011101111 |
3 | 21010022111201122 |
4 | 12011320023233 |
5 | 202131013033 |
6 | 14050331155 |
7 | 2350502156 |
oct | 605701357 |
9 | 233274648 |
10 | 102204143 |
11 | 52767538 |
12 | 2a289abb |
13 | 18235b32 |
14 | d80659d |
15 | 8e8ca98 |
hex | 61782ef |
102204143 has 4 divisors (see below), whose sum is σ = 102377088. Its totient is φ = 102031200.
The previous prime is 102204133. The next prime is 102204169. The reversal of 102204143 is 341402201.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341402201 = 7 ⋅48771743.
It is a cyclic number.
It is not a de Polignac number, because 102204143 - 26 = 102204079 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 (102204133) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85583 + ... + 86768.
It is an arithmetic number, because the mean of its divisors is an integer number (25594272).
Almost surely, 2102204143 is an apocalyptic number.
102204143 is a deficient number, since it is larger than the sum of its proper divisors (172945).
102204143 is an equidigital number, since it uses as much as digits as its factorization.
102204143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 172944.
The product of its (nonzero) digits is 192, while the sum is 17.
The square root of 102204143 is about 10109.6064710749. The cubic root of 102204143 is about 467.5443720454.
Adding to 102204143 its reverse (341402201), we get a palindrome (443606344).
The spelling of 102204143 in words is "one hundred two million, two hundred four thousand, one hundred forty-three".
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