Base | Representation |
---|---|
bin | 11111000101010100000111 |
3 | 120022222021100 |
4 | 133011110013 |
5 | 4041220411 |
6 | 450351143 |
7 | 126154530 |
oct | 37052407 |
9 | 16288240 |
10 | 8148231 |
11 | 4665983 |
12 | 288b4b3 |
13 | 18c3a50 |
14 | 1121687 |
15 | aae456 |
hex | 7c5507 |
8148231 has 24 divisors (see below), whose sum is σ = 14487200. Its totient is φ = 4297536.
The previous prime is 8148229. The next prime is 8148263. The reversal of 8148231 is 1328418.
It is not a de Polignac number, because 8148231 - 21 = 8148229 is a prime.
It is a super-2 number, since 2×81482312 = 132787336858722, which contains 22 as substring.
8148231 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 8148195 and 8148204.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (8148211) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4156 + ... + 5793.
Almost surely, 28148231 is an apocalyptic number.
8148231 is a deficient number, since it is larger than the sum of its proper divisors (6338969).
8148231 is a wasteful number, since it uses less digits than its factorization.
8148231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9975 (or 9972 counting only the distinct ones).
The product of its digits is 1536, while the sum is 27.
The square root of 8148231 is about 2854.5106410732. The cubic root of 8148231 is about 201.2277065953.
It can be divided in two parts, 814 and 8231, that added together give a triangular number (9045 = T134).
The spelling of 8148231 in words is "eight million, one hundred forty-eight thousand, two hundred thirty-one".
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