Base | Representation |
---|---|
bin | 1100001101011… |
… | …01101010111111 |
3 | 21010201122021000 |
4 | 12012231222333 |
5 | 202210020411 |
6 | 14055141343 |
7 | 2352404001 |
oct | 606555277 |
9 | 233648230 |
10 | 102423231 |
11 | 528a70a9 |
12 | 2a374853 |
13 | 182b1781 |
14 | d862371 |
15 | 8ed2956 |
hex | 61adabf |
102423231 has 16 divisors (see below), whose sum is σ = 152427520. Its totient is φ = 67971960.
The previous prime is 102423203. The next prime is 102423241. The reversal of 102423231 is 132324201.
102423231 is a `hidden beast` number, since 10 + 2 + 423 + 231 = 666.
It is not a de Polignac number, because 102423231 - 211 = 102421183 is a prime.
It is a super-2 number, since 2×1024232312 = 20981036496958722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102423241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2485 + ... + 14526.
It is an arithmetic number, because the mean of its divisors is an integer number (9526720).
Almost surely, 2102423231 is an apocalyptic number.
102423231 is a deficient number, since it is larger than the sum of its proper divisors (50004289).
102423231 is a wasteful number, since it uses less digits than its factorization.
102423231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17243 (or 17237 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
The square root of 102423231 is about 10120.4363048240. The cubic root of 102423231 is about 467.8782145307.
Adding to 102423231 its reverse (132324201), we get a palindrome (234747432).
The spelling of 102423231 in words is "one hundred two million, four hundred twenty-three thousand, two hundred thirty-one".
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