1997280000

Names of 1997280000

• Cardinal: 1997280000 can be written as One billion, nine hundred ninety-seven million, two hundred eighty thousand.

Scientific notation

• Scientific notation: 1.99728 × 10⁹

Factors of 1997280000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 102

Divisors of 1997280000

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 19 20 24 25 30 32 36 38 40 45 48 50 57 60 64 72 73 75 76 80 90 95 96 100 114 120 125 128 144 146 150 152 160 171 180 190 192 200 219 225 228 240 250 256 285 288 292 300 304 320 342 360 365 375 380 384 400 438 450 456 475 480 500 570 576 584 600 608 625 640 657 684 720 730 750 760 768 800 855 876 900 912 950 960 1000 1095 1125 1140 1152 1168 1200 1216 1250 1280 1314 1368 1387 1425 1440 1460 1500 1520 1600 1710 1752 1800 1824 1825 1875 1900 1920 2000 2190 2250 2280 2304 2336 2375 2400 2432 2500 2628 2736 2774 2850 2880 2920 3000 3040 3200 3285 3420 3504 3600 3648 3650 3750 3800 3840 4000 4161 4275 4380 4500 4560 4672 4750 4800 4864 5000 5256 5472 5475 5548 5625 5700 5760 5840 6000 6080 6400 6570 6840 6935 7008 7125 7200 7296 7300 7500 7600 8000 8322 8550 8760 9000 9120 9125 9344 9500 9600 10000 10512 10944 10950 11096 11250 11400 11520 11680 11875 12000 12160 12483 13140 13680 13870 14016 14250 14400 14592 14600 15000 15200 16000 16425 16644 17100 17520 18000 18240 18250 18688 19000 19200 20000 20805 21024 21375 21888 21900 22192 22500 22800 23360 23750 24000 24320 24966 26280 27360 27375 27740 28032 28500 28800 29200 30000 30400 32000 32850 33288 34200 34675 35040 35625 36000 36480 36500 38000 40000 41610 42048 42750 43776 43800 44384 45000 45600 45625 46720 47500 48000 49932 52560 54720 54750 55480 56064 57000 57600 58400 60000 60800 62415 65700 66576 68400 69350 70080 71250 72000 72960 73000 76000 80000 82125 83220 84096 85500 87600 88768 90000 91200 91250 93440 95000 96000 99864 104025 105120 106875 109440 109500 110960 114000 116800 120000 121600 124830 131400 133152 136800 136875 138700 140160 142500 144000 146000 152000 160000 164250 166440 168192 171000 173375 175200 177536 180000 182400 182500 190000 199728 208050 210240 213750 218880 219000 221920 228000 233600 240000 249660 262800 266304 273600 273750 277400 280320 285000 288000 292000 304000 312075 328500 332880 342000 346750 350400 355072 360000 364800 365000 380000 399456 410625 416100 420480 427500 438000 443840 456000 467200 480000 499320 520125 525600 532608 547200 547500 554800 570000 584000 608000 624150 657000 665760 684000 693500 700800 720000 730000 760000 798912 821250 832200 840960 855000 866875 876000 887680 912000 998640 1040250 1051200 1065216 1094400 1095000 1109600 1140000 1168000 1248300 1314000 1331520 1368000 1387000 1401600 1440000 1460000 1520000 1560375 1597824 1642500 1664400 1710000 1733750 1752000 1775360 1824000 1997280 2080500 2102400 2190000 2219200 2280000 2336000 2496600 2600625 2628000 2663040 2736000 2774000 2920000 3040000 3120750 3195648 3285000 3328800 3420000 3467500 3504000 3994560 4161000 4204800 4380000 4438400 4560000 4993200 5201250 5256000 5326080 5472000 5548000 5840000 6241500 6570000 6657600 6840000 6935000 7008000 7801875 7989120 8322000 8760000 8876800 9120000 9986400 10402500 10512000 11096000 11680000 12483000 13140000 13315200 13680000 13870000 15603750 15978240 16644000 17520000 19972800 20805000 21024000 22192000 24966000 26280000 26630400 27360000 27740000 31207500 33288000 35040000 39945600 41610000 44384000 49932000 52560000 55480000 62415000 66576000 79891200 83220000 99864000 105120000 110960000 124830000 133152000 166440000 199728000 221920000 249660000 332880000 399456000 499320000 665760000 998640000 1997280000
• Sum of all divisors σ(n): 7678510840
• Sum of proper divisors (its aliquot sum) s(n): 5681230840
• 1997280000 is an abundant number, because the sum of its proper divisors (5681230840) is greater than itself. Its abundance is 3683950840

Bases of 1997280000

• Binary: 1110111000011000001001100000000₂
• Hexadecimal: 0x770C1300
• Base-36: X14N40

Squares and roots of 1997280000

• 1997280000 squared (1997280000²) is 3989127398400000000
• 1997280000 cubed (1997280000³) is 7967404370276352000000000000
• The square root of 1997280000 is 44690.9386788865
• The cube root of 1997280000 is 1259.3496265621

Scales and comparisons

• 1,997,280,000 seconds is equal to 63 years, 26 weeks, 2 days, 16 hours.
• To count from 1 to 1,997,280,000 would take you about one hundred twenty-seven 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 1997280000 cubic inches would be around 104.9 feet tall.

Recreational maths with 1997280000

• 1997280000 backwards is 0000827991
• 1997280000 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1997280000's digits is 36
• More coming soon!