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12870200 = 2352729317
BaseRepresentation
bin110001000110…
…001000111000
3220012212121002
4301012020320
511243321300
61135504132
7214252310
oct61061070
926185532
1012870200
1172a0632
124388048
132888105
1419d0440
1511e35d5
hexc46238

12870200 has 96 divisors (see below), whose sum is σ = 35488800. Its totient is φ = 4247040.

The previous prime is 12870199. The next prime is 12870203. The reversal of 12870200 is 207821.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12870203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40442 + ... + 40758.

It is an arithmetic number, because the mean of its divisors is an integer number (369675).

Almost surely, 212870200 is an apocalyptic number.

12870200 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 12870200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17744400).

12870200 is an abundant number, since it is smaller than the sum of its proper divisors (22618600).

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

12870200 is a wasteful number, since it uses less digits than its factorization.

12870200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 12870200 is about 3587.5060975558. The cubic root of 12870200 is about 234.3482772496.

The spelling of 12870200 in words is "twelve million, eight hundred seventy thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 29 35 40 50 56 58 70 100 116 140 145 175 200 203 232 280 290 317 350 406 580 634 700 725 812 1015 1160 1268 1400 1450 1585 1624 2030 2219 2536 2900 3170 4060 4438 5075 5800 6340 7925 8120 8876 9193 10150 11095 12680 15850 17752 18386 20300 22190 31700 36772 40600 44380 45965 55475 63400 64351 73544 88760 91930 110950 128702 183860 221900 229825 257404 321755 367720 443800 459650 514808 643510 919300 1287020 1608775 1838600 2574040 3217550 6435100 12870200