Search a number
-
+
212405144000 = 265373792949
BaseRepresentation
bin1100010111010001010…
…1010100100111000000
3202022020212202021221012
43011310111110213000
511440001204102000
6241324431220052
721226411635410
oct3056425244700
9668225667835
10212405144000
1182098191525
12351ba077628
13170503a677a
14a3cd842640
1557d2572735
hex31745549c0

212405144000 has 112 divisors (see below), whose sum is σ = 601167403200. Its totient is φ = 72824601600.

The previous prime is 212405143999. The next prime is 212405144051. The reversal of 212405144000 is 441504212.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1840475 + ... + 1952474.

It is an arithmetic number, because the mean of its divisors is an integer number (5367566100).

Almost surely, 2212405144000 is an apocalyptic number.

212405144000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212405144000 is an abundant number, since it is smaller than the sum of its proper divisors (388762259200).

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

212405144000 is an equidigital number, since it uses as much as digits as its factorization.

212405144000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792983 (or 3792963 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 212405144000 its reverse (441504212), we get a palindrome (212846648212).

The spelling of 212405144000 in words is "two hundred twelve billion, four hundred five million, one hundred forty-four thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 50 56 64 70 80 100 112 125 140 160 175 200 224 250 280 320 350 400 448 500 560 700 800 875 1000 1120 1400 1600 1750 2000 2240 2800 3500 4000 5600 7000 8000 11200 14000 28000 56000 3792949 7585898 15171796 18964745 26550643 30343592 37929490 53101286 60687184 75858980 94823725 106202572 121374368 132753215 151717960 189647450 212405144 242748736 265506430 303435920 379294900 424810288 474118625 531012860 606871840 663766075 758589800 849620576 948237250 1062025720 1213743680 1327532150 1517179600 1699241152 1896474500 2124051440 2655064300 3034359200 3318830375 3792949000 4248102880 5310128600 6068718400 6637660750 7585898000 8496205760 10620257200 13275321500 15171796000 21240514400 26550643000 30343592000 42481028800 53101286000 106202572000 212405144000