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12230020 = 22511232417
BaseRepresentation
bin101110101001…
…110110000100
3212000100102201
4232221312010
511112330040
61114044244
7205645015
oct56516604
925010381
1012230020
1169a3660
124119684
1326c28ca
1418a500c
151118a9a
hexba9d84

12230020 has 48 divisors (see below), whose sum is σ = 29248128. Its totient is φ = 4252160.

The previous prime is 12230003. The next prime is 12230041. The reversal of 12230020 is 2003221.

12230020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12229979 and 12230006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3852 + ... + 6268.

It is an arithmetic number, because the mean of its divisors is an integer number (609336).

Almost surely, 212230020 is an apocalyptic number.

12230020 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 12230020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14624064).

12230020 is an abundant number, since it is smaller than the sum of its proper divisors (17018108).

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

12230020 is a wasteful number, since it uses less digits than its factorization.

12230020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2460 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 12230020 is about 3497.1445494861. The cubic root of 12230020 is about 230.3964178086.

Adding to 12230020 its reverse (2003221), we get a palindrome (14233241).

It can be divided in two parts, 12 and 230020, that added together give a palindrome (230032).

The spelling of 12230020 in words is "twelve million, two hundred thirty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 23 44 46 55 92 110 115 220 230 253 460 506 1012 1265 2417 2530 4834 5060 9668 12085 24170 26587 48340 53174 55591 106348 111182 132935 222364 265870 277955 531740 555910 611501 1111820 1223002 2446004 3057505 6115010 12230020