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12485800 = 2352163383
BaseRepresentation
bin101111101000…
…010010101000
3212111100022001
4233220102220
511144021200
61123340344
7211061515
oct57502250
925440261
1012485800
117058848
1242216b4
132782162
14193030c
15116976a
hexbe84a8

12485800 has 48 divisors (see below), whose sum is σ = 29283840. Its totient is φ = 4950720.

The previous prime is 12485797. The next prime is 12485801. The reversal of 12485800 is 858421.

It is not an unprimeable number, because it can be changed into a prime (12485801) 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, 32409 + ... + 32791.

It is an arithmetic number, because the mean of its divisors is an integer number (610080).

Almost surely, 212485800 is an apocalyptic number.

12485800 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 12485800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14641920).

12485800 is an abundant number, since it is smaller than the sum of its proper divisors (16798040).

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

12485800 is a wasteful number, since it uses less digits than its factorization.

12485800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 12485800 is about 3533.5251520259. The cubic root of 12485800 is about 231.9915276335.

The spelling of 12485800 in words is "twelve million, four hundred eighty-five thousand, eight hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 163 200 326 383 652 766 815 1304 1532 1630 1915 3064 3260 3830 4075 6520 7660 8150 9575 15320 16300 19150 32600 38300 62429 76600 124858 249716 312145 499432 624290 1248580 1560725 2497160 3121450 6242900 12485800