Search a number
-
+
2011230 = 234513191
BaseRepresentation
bin111101011000001011110
310210011220000
413223001132
51003324410
6111035130
723044434
oct7530136
93704800
102011230
111154081
1280baa6
135555a0
143a4d54
1529adc0
hex1eb05e

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".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 27 30 39 45 54 65 78 81 90 117 130 135 162 191 195 234 270 351 382 390 405 573 585 702 810 955 1053 1146 1170 1719 1755 1910 2106 2483 2865 3438 3510 4966 5157 5265 5730 7449 8595 10314 10530 12415 14898 15471 17190 22347 24830 25785 30942 37245 44694 51570 67041 74490 77355 111735 134082 154710 201123 223470 335205 402246 670410 1005615 2011230