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12210431200 = 2552112834903
BaseRepresentation
bin10110101111100110…
…00110010011100000
31011111222002011200121
423113303012103200
5200001332244300
65335343530024
7611404644532
oct132763062340
934458064617
1012210431200
1151a6519760
1224492b9914
1311c7931a26
1483b957852
154b6e8a81a
hex2d7cc64e0

12210431200 has 144 divisors (see below), whose sum is σ = 32640160896. Its totient is φ = 4423564800.

The previous prime is 12210431197. The next prime is 12210431227. The reversal of 12210431200 is 213401221.

12210431200 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 (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2487949 + ... + 2492851.

It is an arithmetic number, because the mean of its divisors is an integer number (226667784).

Almost surely, 212210431200 is an apocalyptic number.

12210431200 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 12210431200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16320080448).

12210431200 is an abundant number, since it is smaller than the sum of its proper divisors (20429729696).

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

12210431200 is a wasteful number, since it uses less digits than its factorization.

12210431200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217 (or 5204 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12210431200 its reverse (213401221), we get a palindrome (12423832421).

The spelling of 12210431200 in words is "twelve billion, two hundred ten million, four hundred thirty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 80 88 100 110 160 176 200 220 275 283 352 400 440 550 566 800 880 1100 1132 1415 1760 2200 2264 2830 3113 4400 4528 4903 5660 6226 7075 8800 9056 9806 11320 12452 14150 15565 19612 22640 24515 24904 28300 31130 39224 45280 49030 49808 53933 56600 62260 77825 78448 98060 99616 107866 113200 122575 124520 155650 156896 196120 215732 226400 245150 249040 269665 311300 392240 431464 490300 498080 539330 622600 784480 862928 980600 1078660 1245200 1348325 1387549 1725856 1961200 2157320 2490400 2696650 2775098 3922400 4314640 5393300 5550196 6937745 8629280 10786600 11100392 13875490 15263039 21573200 22200784 27750980 30526078 34688725 43146400 44401568 55501960 61052156 69377450 76315195 111003920 122104312 138754900 152630390 222007840 244208624 277509800 305260780 381575975 488417248 555019600 610521560 763151950 1110039200 1221043120 1526303900 2442086240 3052607800 6105215600 12210431200