12720081808

Names of 12720081808

• Cardinal: 12720081808 can be written as Twelve billion, seven hundred twenty million, eighty-one thousand, eight hundred eight.

Scientific notation

• Scientific notation: 1.2720081808 × 10¹⁰

Factors of 12720081808

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 595

Divisors of 12720081808

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 7 8 14 16 28 43 56 73 86 97 112 146 172 194 292 301 344 373 388 511 584 602 679 688 746 776 1022 1168 1204 1358 1492 1552 2044 2408 2611 2716 2984 3139 4088 4171 4816 5222 5432 5968 6278 7081 8176 8342 10444 10864 12556 14162 16039 16684 20888 21973 25112 27229 28324 29197 32078 33368 36181 41776 43946 49567 50224 54458 56648 58394 64156 66736 72362 87892 99134 108916 112273 113296 116788 128312 144724 175784 190603 198268 217832 224546 233576 253267 256624 289448 304483 351568 381206 396536 435664 449092 467152 506534 578896 608966 762412 793072 898184 1013068 1170847 1217932 1524824 1555783 1796368 2026136 2131381 2341694 2435864 2641213 3049648 3111566 4052272 4262762 4683388 4871728 5282426 6223132 8195929 8525524 9366776 10564852 10890481 12446264 16391858 17051048 18488491 18733552 21129704 21780962 24892528 32783716 34102096 36976982 42259408 43561924 65567432 73953964 87123848 113572159 131134864 147907928 174247696 227144318 295815856 454288636 795005113 908577272 1590010226 1817154544 3180020452 6360040904 12720081808
• Sum of all divisors σ(n): 29596050176
• Sum of proper divisors (its aliquot sum) s(n): 16875968368
• 12720081808 is an abundant number, because the sum of its proper divisors (16875968368) is greater than itself. Its abundance is 4155886560

Bases of 12720081808

• Binary: 1011110110001011010000101110010000₂
• Hexadecimal: 0x2F62D0B90
• Base-36: 5UD7HXS

Squares and roots of 12720081808

• 12720081808 squared (12720081808²) is 161800481202212548864
• 12720081808 cubed (12720081808³) is 2058115357465909812154277466112
• The square root of 12720081808 is 112783.3401172355
• The cube root of 12720081808 is 2334.3356437969

Scales and comparisons

• 12,720,081,808 seconds is equal to 404 years, 23 weeks, 6 days, 4 hours, 3 minutes, 28 seconds.
• To count from 1 to 12,720,081,808 would take you about eight hundred eight 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 12720081808 cubic inches would be around 194.5 feet tall.

Recreational maths with 12720081808

• 12720081808 backwards is 80818002721
• The number of decimal digits it has is: 11
• The sum of 12720081808's digits is 37
• More coming soon!