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11230380 = 2233572971
BaseRepresentation
bin101010110101…
…110010101100
3210010120012000
4222311302230
510333333010
61040412300
7164312430
oct52656254
923116160
1011230380
116380607
123917090
1324328c5
1416c49c0
15ebc7c0
hexab5cac

11230380 has 96 divisors (see below), whose sum is σ = 39943680. Its totient is φ = 2566080.

The previous prime is 11230361. The next prime is 11230381. The reversal of 11230380 is 8303211.

It is a super-2 number, since 2×112303802 = 252242869888800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11230381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2295 + ... + 5265.

It is an arithmetic number, because the mean of its divisors is an integer number (416080).

Almost surely, 211230380 is an apocalyptic number.

11230380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11230380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19971840).

11230380 is an abundant number, since it is smaller than the sum of its proper divisors (28713300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11230380 is a wasteful number, since it uses less digits than its factorization.

11230380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996 (or 2988 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 11230380 is about 3351.1759130192. The cubic root of 11230380 is about 223.9399020322.

Adding to 11230380 its reverse (8303211), we get a palindrome (19533591).

The spelling of 11230380 in words is "eleven million, two hundred thirty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 35 36 42 45 54 60 63 70 84 90 105 108 126 135 140 180 189 210 252 270 315 378 420 540 630 756 945 1260 1890 2971 3780 5942 8913 11884 14855 17826 20797 26739 29710 35652 41594 44565 53478 59420 62391 80217 83188 89130 103985 106956 124782 133695 160434 178260 187173 207970 249564 267390 311955 320868 374346 401085 415940 534780 561519 623910 748692 802170 935865 1123038 1247820 1604340 1871730 2246076 2807595 3743460 5615190 11230380