Base | Representation |
---|---|
bin | 111101011000001011110 |
3 | 10210011220000 |
4 | 13223001132 |
5 | 1003324410 |
6 | 111035130 |
7 | 23044434 |
oct | 7530136 |
9 | 3704800 |
10 | 2011230 |
11 | 1154081 |
12 | 80baa6 |
13 | 5555a0 |
14 | 3a4d54 |
15 | 29adc0 |
hex | 1eb05e |
2011230 has 80 divisors (see below), whose sum is σ = 5854464. Its totient is φ = 492480.
The previous prime is 2011211. The next prime is 2011241. The reversal of 2011230 is 321102.
It is a happy number.
It is a super-2 number, since 2×20112302 = 8090092225800, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (9).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10435 + ... + 10625.
22011230 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2011230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2927232).
2011230 is an abundant number, since it is smaller than the sum of its proper divisors (3843234).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2011230 is a wasteful number, since it uses less digits than its factorization.
2011230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 223 (or 214 counting only the distinct ones).
The product of its (nonzero) digits is 12, while the sum is 9.
The square root of 2011230 is about 1418.1784090868. The cubic root of 2011230 is about 126.2274802169.
Adding to 2011230 its reverse (321102), we get a palindrome (2332332).
It can be divided in two parts, 201 and 1230, that added together give a triangular number (1431 = T53).
The spelling of 2011230 in words is "two million, eleven thousand, two hundred thirty".
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