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641045620000 = 255459543259
BaseRepresentation
bin10010101010000010100…
…10111110010100100000
32021021122120102120222101
421111001102332110200
541000330134320000
61210254200220144
764212464602432
oct11250122762440
92237576376871
10641045620000
112279585a43a5
12a42a4a6a654
13485b1530816
1423053676652
1511a1d547e6a
hex95414be520

641045620000 has 120 divisors (see below), whose sum is σ = 1603801306800. Its totient is φ = 252071712000.

The previous prime is 641045619959. The next prime is 641045620091. The reversal of 641045620000 is 26540146.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 908371 + ... + 1451629.

It is an arithmetic number, because the mean of its divisors is an integer number (13365010890).

Almost surely, 2641045620000 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 641045620000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801900653400).

641045620000 is an abundant number, since it is smaller than the sum of its proper divisors (962755686800).

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

641045620000 is an equidigital number, since it uses as much as digits as its factorization.

641045620000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543348 (or 543325 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 641045620000 in words is "six hundred forty-one billion, forty-five million, six hundred twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 59 80 100 118 125 160 200 236 250 295 400 472 500 590 625 800 944 1000 1180 1250 1475 1888 2000 2360 2500 2950 4000 4720 5000 5900 7375 9440 10000 11800 14750 20000 23600 29500 36875 47200 59000 73750 118000 147500 236000 295000 543259 590000 1086518 1180000 2173036 2716295 4346072 5432590 8692144 10865180 13581475 17384288 21730360 27162950 32052281 43460720 54325900 64104562 67907375 86921440 108651800 128209124 135814750 160261405 217303600 256418248 271629500 320522810 339536875 434607200 512836496 543259000 641045620 679073750 801307025 1025672992 1086518000 1282091240 1358147500 1602614050 2173036000 2564182480 2716295000 3205228100 4006535125 5128364960 5432590000 6410456200 8013070250 10865180000 12820912400 16026140500 20032675625 25641824800 32052281000 40065351250 64104562000 80130702500 128209124000 160261405000 320522810000 641045620000