640639948000

Names of 640639948000

• Cardinal: 640639948000 can be written as Six hundred forty billion, six hundred thirty-nine million, nine hundred forty-eight thousand.

Scientific notation

• Scientific notation: 6.40639948 × 10¹¹

Factors of 640639948000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4909

Divisors of 640639948000

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 8 10 13 16 19 20 25 26 32 38 40 50 52 65 76 80 95 100 104 125 130 137 152 160 190 200 208 247 250 260 274 304 325 380 400 416 475 494 500 520 548 608 650 685 760 800 950 988 1000 1040 1096 1235 1300 1370 1520 1625 1781 1900 1976 2000 2080 2192 2375 2470 2600 2603 2740 3040 3250 3425 3562 3800 3952 4000 4384 4733 4750 4940 5200 5206 5480 6175 6500 6850 7124 7600 7904 8905 9466 9500 9880 10400 10412 10960 12350 13000 13015 13700 14248 15200 17125 17810 18932 19000 19760 20824 21920 23665 24700 26000 26030 27400 28496 30875 33839 34250 35620 37864 38000 39520 41648 44525 47330 49400 52000 52060 54800 56992 61529 61750 65075 67678 68500 71240 75728 76000 83296 89050 89927 94660 98800 104120 109600 118325 123058 123500 130150 135356 137000 142480 151456 169195 178100 179854 189320 197600 208240 222625 236650 246116 247000 260300 270712 274000 284960 307645 325375 338390 356200 359708 378640 416480 445250 449635 473300 492232 494000 520600 541424 548000 591625 615290 648421 650750 676780 712400 719416 757280 845975 890500 899270 946600 984464 988000 1041200 1082848 1169051 1183250 1230580 1296842 1301500 1353560 1424800 1438832 1538225 1691950 1781000 1798540 1893200 1968928 2082400 2248175 2338102 2366500 2461160 2593684 2603000 2707120 2877664 3076450 3242105 3383900 3562000 3597080 3786400 4229875 4496350 4676204 4733000 4922320 5187368 5206000 5414240 5845255 6152900 6484210 6767800 7124000 7194160 7691125 8429473 8459750 8992700 9352408 9466000 9844640 10374736 10412000 11240875 11690510 12305800 12319999 12968420 13535600 14388320 15382250 16210525 16858946 16919500 17985400 18704816 18932000 20749472 22481750 23381020 24611600 24639998 25936840 27071200 29226275 30764500 32421050 33717892 33839000 35970800 37409632 42147365 44963500 46762040 49223200 49279996 51873680 58452550 61529000 61599995 64842100 67435784 67678000 71941600 81052625 84294730 89927000 93524080 98559992 103747360 116905100 123058000 123199990 129684200 134871568 135356000 146131375 160159987 162105250 168589460 179854000 187048160 197119984 210736825 233810200 246116000 246399980 259368400 269743136 292262750 307999975 320319974 324210500 337178920 359708000 394239968 421473650 467620400 492799960 518736800 584525500 615999950 640639948 648421000 674357840 800799935 842947300 935240800 985599920 1053684125 1169051000 1231999900 1281279896 1296842000 1348715680 1539999875 1601599870 1685894600 1971199840 2107368250 2338102000 2463999800 2562559792 2593684000 3079999750 3203199740 3371789200 4003999675 4214736500 4676204000 4927999600 5125119584 6159999500 6406399480 6743578400 8007999350 8429473000 9855999200 12319999000 12812798960 16015998700 16858946000 20019998375 24639998000 25625597920 32031997400 33717892000 40039996750 49279996000 64063994800 80079993500 128127989600 160159987000 320319974000 640639948000
• Sum of all divisors σ(n): 1797755057280
• Sum of proper divisors (its aliquot sum) s(n): 1157115109280
• 640639948000 is an abundant number, because the sum of its proper divisors (1157115109280) is greater than itself. Its abundance is 516475161280

Bases of 640639948000

• Binary: 1001010100101001000111011101010011100000₂
• Hexadecimal: 0x95291DD4E0
• Base-36: 86B0HFJ4

Squares and roots of 640639948000

• 640639948000 squared (640639948000²) is 410419542973442704000000
• 640639948000 cubed (640639948000³) is 262931154668690099271539392000000000
• The square root of 640639948000 is 800399.8675662061
• The cube root of 640639948000 is 8620.6101494777

Scales and comparisons

• 640,639,948,000 seconds is equal to 20,370 years, 19 weeks, 1 day, 5 hours, 6 minutes, 40 seconds.
• To count from 1 to 640,639,948,000 would take you about forty thousand, seven hundred forty years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 640639948000 cubic inches would be around 718.4 feet tall.

Recreational maths with 640639948000

• 640639948000 backwards is 000849936046
• The number of decimal digits it has is: 12
• The sum of 640639948000's digits is 49
• More coming soon!