Base | Representation |
---|---|
bin | 1000010011111010… |
… | …0110100001101000 |
3 | 12202111000201002122 |
4 | 2010332212201220 |
5 | 14032114100430 |
6 | 1005214050412 |
7 | 106200133424 |
oct | 20476464150 |
9 | 5674021078 |
10 | 2231003240 |
11 | a45385834 |
12 | 5231a9a08 |
13 | 29729817b |
14 | 17242bb84 |
15 | d0ce2ee5 |
hex | 84fa6868 |
2231003240 has 16 divisors (see below), whose sum is σ = 5019757380. Its totient is φ = 892401280.
The previous prime is 2231003219. The next prime is 2231003249. The reversal of 2231003240 is 423001322.
It can be written as a sum of positive squares in 2 ways, for example, as 1959478756 + 271524484 = 44266^2 + 16478^2 .
It is a super-3 number, since 3×22310032403 (a number of 29 digits) contains 333 as substring.
It is not an unprimeable number, because it can be changed into a prime (2231003249) 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, 27887501 + ... + 27887580.
Almost surely, 22231003240 is an apocalyptic number.
2231003240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
2231003240 is an abundant number, since it is smaller than the sum of its proper divisors (2788754140).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2231003240 is a wasteful number, since it uses less digits than its factorization.
2231003240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55775092 (or 55775088 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 2231003240 is about 47233.4970121841. The cubic root of 2231003240 is about 1306.6724475079.
Adding to 2231003240 its reverse (423001322), we get a palindrome (2654004562).
The spelling of 2231003240 in words is "two billion, two hundred thirty-one million, three thousand, two hundred forty".
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