681380400

Names of 681380400

• Cardinal: 681380400 can be written as Six hundred eighty-one million, three hundred eighty thousand, four hundred.

Scientific notation

• Scientific notation: 6.813804 × 10⁸

Factors of 681380400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 417

Divisors of 681380400

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 24 25 30 34 40 48 50 51 60 68 75 80 85 100 102 120 127 136 150 170 200 204 240 254 255 263 272 300 340 381 400 408 425 508 510 526 600 635 680 762 789 816 850 1016 1020 1052 1200 1270 1275 1315 1360 1524 1578 1700 1905 2032 2040 2104 2159 2540 2550 2630 3048 3156 3175 3400 3810 3945 4080 4208 4318 4471 5080 5100 5260 6096 6312 6350 6477 6575 6800 7620 7890 8636 8942 9525 10160 10200 10520 10795 12624 12700 12954 13150 13413 15240 15780 17272 17884 19050 19725 20400 21040 21590 22355 25400 25908 26300 26826 30480 31560 32385 33401 34544 35768 38100 39450 43180 44710 50800 51816 52600 53652 53975 63120 64770 66802 67065 71536 76200 78900 86360 89420 100203 103632 105200 107304 107950 111775 129540 133604 134130 152400 157800 161925 167005 172720 178840 200406 214608 215900 223550 259080 267208 268260 315600 323850 334010 335325 357680 400812 431800 447100 501015 518160 534416 536520 567817 647700 668020 670650 801624 835025 863600 894200 1002030 1073040 1135634 1295400 1336040 1341300 1603248 1670050 1703451 1788400 2004060 2271268 2505075 2590800 2672080 2682600 2839085 3340100 3406902 4008120 4542536 5010150 5365200 5678170 6680200 6813804 8016240 8517255 9085072 10020300 11356340 13360400 13627608 14195425 17034510 20040600 22712680 27255216 28390850 34069020 40081200 42586275 45425360 56781700 68138040 85172550 113563400 136276080 170345100 227126800 340690200 681380400
• Sum of all divisors σ(n): 2338136064
• Sum of proper divisors (its aliquot sum) s(n): 1656755664
• 681380400 is an abundant number, because the sum of its proper divisors (1656755664) is greater than itself. Its abundance is 975375264

Bases of 681380400

• Binary: 101000100111010000101000110000₂
• Hexadecimal: 0x289D0A30
• Base-36: B9OCHC

Squares and roots of 681380400

• 681380400 squared (681380400²) is 464279249504160000
• 681380400 cubed (681380400³) is 316350780738844342464000000
• The square root of 681380400 is 26103.2641637019
• The cube root of 681380400 is 879.9605698587

Scales and comparisons

• 681,380,400 seconds is equal to 21 years, 34 weeks, 4 days, 8 hours, 20 minutes.
• To count from 1 to 681,380,400 would take you about thirty-two 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 681380400 cubic inches would be around 73.3 feet tall.

Recreational maths with 681380400

• 681380400 backwards is 004083186
• 681380400 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 681380400's digits is 30
• More coming soon!