Search a number
-
+
12208860 = 2233523983
BaseRepresentation
bin101110100100…
…101011011100
3211222021102000
4232210223130
511111140420
61113402300
7205526226
oct56445334
924867360
1012208860
116989774
124109390
1326b60a1
14189b416
151112690
hexba4adc

12208860 has 96 divisors (see below), whose sum is σ = 39674880. Its totient is φ = 3110976.

The previous prime is 12208843. The next prime is 12208871. The reversal of 12208860 is 6880221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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, 11929 + ... + 12911.

It is an arithmetic number, because the mean of its divisors is an integer number (413280).

Almost surely, 212208860 is an apocalyptic number.

12208860 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 12208860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19837440).

12208860 is an abundant number, since it is smaller than the sum of its proper divisors (27466020).

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

12208860 is a wasteful number, since it uses less digits than its factorization.

12208860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1016 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12208860 is about 3494.1179144385. The cubic root of 12208860 is about 230.2634661988.

The spelling of 12208860 in words is "twelve million, two hundred eight thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 23 27 30 36 45 46 54 60 69 90 92 108 115 135 138 180 207 230 270 276 345 414 460 540 621 690 828 983 1035 1242 1380 1966 2070 2484 2949 3105 3932 4140 4915 5898 6210 8847 9830 11796 12420 14745 17694 19660 22609 26541 29490 35388 44235 45218 53082 58980 67827 88470 90436 106164 113045 132705 135654 176940 203481 226090 265410 271308 339135 406962 452180 530820 610443 678270 813924 1017405 1220886 1356540 2034810 2441772 3052215 4069620 6104430 12208860