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2120351200 = 255211832903
BaseRepresentation
bin111111001100001…
…1111110111100000
312110202211000000221
41332120133313200
513320302214300
6550222252424
7103354454632
oct17630376740
95422730027
102120351200
11998979270
124b2127114
1327a3950a6
14161866a52
15c623731a
hex7e61fde0

2120351200 has 144 divisors (see below), whose sum is σ = 5716884096. Its totient is φ = 761484800.

The previous prime is 2120351183. The next prime is 2120351201. The reversal of 2120351200 is 21530212.

It is a super-2 number, since 2×21203512002 = 8991778422682880000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120351201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 728949 + ... + 731851.

It is an arithmetic number, because the mean of its divisors is an integer number (39700584).

Almost surely, 22120351200 is an apocalyptic number.

2120351200 is a gapful number since it is divisible by the number (20) 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 2120351200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2858442048).

2120351200 is an abundant number, since it is smaller than the sum of its proper divisors (3596532896).

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

2120351200 is a wasteful number, since it uses less digits than its factorization.

2120351200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017 (or 3004 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2120351200 is about 46047.2713632415. The cubic root of 2120351200 is about 1284.7025913174.

Adding to 2120351200 its reverse (21530212), we get a palindrome (2141881412).

The spelling of 2120351200 in words is "two billion, one hundred twenty million, three hundred fifty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 80 83 88 100 110 160 166 176 200 220 275 332 352 400 415 440 550 664 800 830 880 913 1100 1328 1660 1760 1826 2075 2200 2656 2903 3320 3652 4150 4400 4565 5806 6640 7304 8300 8800 9130 11612 13280 14515 14608 16600 18260 22825 23224 29030 29216 31933 33200 36520 45650 46448 58060 63866 66400 72575 73040 91300 92896 116120 127732 145150 146080 159665 182600 232240 240949 255464 290300 319330 365200 464480 481898 510928 580600 638660 730400 798325 963796 1021856 1161200 1204745 1277320 1596650 1927592 2322400 2409490 2554640 2650439 3193300 3855184 4818980 5109280 5300878 6023725 6386600 7710368 9637960 10601756 12047450 12773200 13252195 19275920 21203512 24094900 25546400 26504390 38551840 42407024 48189800 53008780 66260975 84814048 96379600 106017560 132521950 192759200 212035120 265043900 424070240 530087800 1060175600 2120351200