80991400

Names of 80991400

• Cardinal: 80991400 can be written as Eighty million, nine hundred ninety-one thousand, four hundred.

Scientific notation

• Scientific notation: 8.09914 × 10⁷

Factors of 80991400

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 155

Divisors of 80991400

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 7 8 10 14 17 20 25 28 34 35 40 41 50 56 68 70 82 83 85 100 119 136 140 164 166 170 175 200 205 238 280 287 328 332 340 350 410 415 425 476 574 581 595 664 680 697 700 820 830 850 952 1025 1148 1162 1190 1394 1400 1411 1435 1640 1660 1700 2050 2075 2296 2324 2380 2788 2822 2870 2905 2975 3320 3400 3403 3485 4100 4150 4648 4760 4879 5576 5644 5740 5810 5950 6806 6970 7055 7175 8200 8300 9758 9877 11288 11480 11620 11900 13612 13940 14110 14350 14525 16600 17015 17425 19516 19754 23240 23800 23821 24395 27224 27880 28220 28700 29050 34030 34850 35275 39032 39508 47642 48790 49385 56440 57400 57851 58100 68060 69700 70550 79016 85075 95284 97580 98770 115702 116200 119105 121975 136120 139400 141100 170150 190568 195160 197540 231404 238210 243950 246925 282200 289255 340300 395080 404957 462808 476420 487900 493850 578510 595525 680600 809914 952840 975800 987700 1157020 1191050 1446275 1619828 1975400 2024785 2314040 2382100 2892550 3239656 4049570 4764200 5785100 8099140 10123925 11570200 16198280 20247850 40495700 80991400
• Sum of all divisors σ(n): 236234880
• Sum of proper divisors (its aliquot sum) s(n): 155243480
• 80991400 is an abundant number, because the sum of its proper divisors (155243480) is greater than itself. Its abundance is 74252080

Bases of 80991400

• Binary: 100110100111101010010101000₂
• Hexadecimal: 0x4D3D4A8
• Base-36: 1C7XD4

Squares and roots of 80991400

• 80991400 squared (80991400²) is 6559606873960000
• 80991400 cubed (80991400³) is 531271744171643944000000
• The square root of 80991400 is 8999.5222095395
• The cube root of 80991400 is 432.6595577771

Scales and comparisons

• 80,991,400 seconds is equal to 2 years, 29 weeks, 6 days, 9 hours, 36 minutes, 40 seconds.
• To count from 1 to 80,991,400 would take you about three 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 80991400 cubic inches would be around 36.1 feet tall.

Recreational maths with 80991400

• 80991400 backwards is 00419908
• The number of decimal digits it has is: 8
• The sum of 80991400's digits is 31
• More coming soon!