Search a number
-
+
12261200 = 2452729151
BaseRepresentation
bin101110110001…
…011101010000
3212001221012112
4232301131100
511114324300
61114444452
7206134640
oct56613520
925057175
1012261200
116a15026
124133728
132703b63
1418b2520
151122e35
hexbb1750

12261200 has 120 divisors (see below), whose sum is σ = 35057280. Its totient is φ = 4032000.

The previous prime is 12261187. The next prime is 12261211. The reversal of 12261200 is 216221.

12261200 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 (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81125 + ... + 81275.

It is an arithmetic number, because the mean of its divisors is an integer number (292144).

Almost surely, 212261200 is an apocalyptic number.

12261200 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 12261200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17528640).

12261200 is an abundant number, since it is smaller than the sum of its proper divisors (22796080).

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

12261200 is a wasteful number, since it uses less digits than its factorization.

12261200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12261200 is about 3501.5996344528. The cubic root of 12261200 is about 230.5920474703.

Adding to 12261200 its reverse (216221), we get a palindrome (12477421).

The spelling of 12261200 in words is "twelve million, two hundred sixty-one thousand, two hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 29 35 40 50 56 58 70 80 100 112 116 140 145 151 175 200 203 232 280 290 302 350 400 406 464 560 580 604 700 725 755 812 1015 1057 1160 1208 1400 1450 1510 1624 2030 2114 2320 2416 2800 2900 3020 3248 3775 4060 4228 4379 5075 5285 5800 6040 7550 8120 8456 8758 10150 10570 11600 12080 15100 16240 16912 17516 20300 21140 21895 26425 30200 30653 35032 40600 42280 43790 52850 60400 61306 70064 81200 84560 87580 105700 109475 122612 153265 175160 211400 218950 245224 306530 350320 422800 437900 490448 613060 766325 875800 1226120 1532650 1751600 2452240 3065300 6130600 12261200