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64244028200 = 235211193315107
BaseRepresentation
bin111011110101001111…
…100001001100101000
320010211021110202221212
4323311033201030220
52023032432400300
645302512252252
74433012141522
oct736517411450
9203737422855
1064244028200
1125278096290
121054b241088
13609aab0091
1431763aaa12
151a1012c935
hexef53e1328

64244028200 has 96 divisors (see below), whose sum is σ = 163041305760. Its totient is φ = 23347833600.

The previous prime is 64244028169. The next prime is 64244028209. The reversal of 64244028200 is 282044246.

It is not an unprimeable number, because it can be changed into a prime (64244028209) 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, 4245047 + ... + 4260153.

It is an arithmetic number, because the mean of its divisors is an integer number (1698346935).

Almost surely, 264244028200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64244028200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81520652880).

64244028200 is an abundant number, since it is smaller than the sum of its proper divisors (98797277560).

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

64244028200 is a wasteful number, since it uses less digits than its factorization.

64244028200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17067 (or 17058 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The spelling of 64244028200 in words is "sixty-four billion, two hundred forty-four million, twenty-eight thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 1933 2200 3866 7732 9665 15107 15464 19330 21263 30214 38660 42526 48325 60428 75535 77320 85052 96650 106315 120856 151070 166177 170104 193300 212630 302140 332354 377675 386600 425260 531575 604280 664708 755350 830885 850520 1063150 1329416 1510700 1661770 2126300 3021400 3323540 4154425 4252600 6647080 8308850 16617700 29201831 33235400 58403662 116807324 146009155 233614648 292018310 321220141 584036620 642440282 730045775 1168073240 1284880564 1460091550 1606100705 2569761128 2920183100 3212201410 5840366200 6424402820 8030503525 12848805640 16061007050 32122014100 64244028200