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12225200 = 2452132351
BaseRepresentation
bin101110101000…
…101010110000
3212000002211012
4232220222300
511112201300
61114010052
7205624661
oct56505260
925002735
1012225200
11699aa79
124116928
1326c0660
1418a3368
151117435
hexba8ab0

12225200 has 60 divisors (see below), whose sum is σ = 31643808. Its totient is φ = 4512000.

The previous prime is 12225197. The next prime is 12225203. The reversal of 12225200 is 252221.

It is an interprime number because it is at equal distance from previous prime (12225197) and next prime (12225203).

It is not an unprimeable number, because it can be changed into a prime (12225203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4025 + ... + 6375.

Almost surely, 212225200 is an apocalyptic number.

12225200 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 12225200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15821904).

12225200 is an abundant number, since it is smaller than the sum of its proper divisors (19418608).

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

12225200 is a wasteful number, since it uses less digits than its factorization.

12225200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382 (or 2371 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 12225200 is about 3496.4553479202. The cubic root of 12225200 is about 230.3661464856.

Adding to 12225200 its reverse (252221), we get a palindrome (12477421).

The spelling of 12225200 in words is "twelve million, two hundred twenty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 13 16 20 25 26 40 50 52 65 80 100 104 130 200 208 260 325 400 520 650 1040 1300 2351 2600 4702 5200 9404 11755 18808 23510 30563 37616 47020 58775 61126 94040 117550 122252 152815 188080 235100 244504 305630 470200 489008 611260 764075 940400 1222520 1528150 2445040 3056300 6112600 12225200