1216994772

Names of 1216994772

• Cardinal: 1216994772 can be written as One billion, two hundred sixteen million, nine hundred ninety-four thousand, seven hundred seventy-two.

Scientific notation

• Scientific notation: 1.216994772 × 10⁹

Factors of 1216994772

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 561

Divisors of 1216994772

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 43 49 84 86 98 127 129 147 172 196 254 258 294 301 379 381 508 516 588 602 758 762 889 903 1137 1204 1516 1524 1778 1806 2107 2274 2653 2667 3556 3612 4214 4548 5306 5334 5461 6223 6321 7959 8428 10612 10668 10922 12446 12642 15918 16297 16383 18571 18669 21844 24892 25284 31836 32594 32766 37142 37338 38227 48133 48891 55713 65188 65532 74284 74676 76454 96266 97782 111426 114079 114681 144399 152908 192532 195564 222852 228158 229362 267589 288798 336931 342237 456316 458724 535178 577596 673862 684474 798553 802767 1010793 1070356 1347724 1368948 1597106 1605534 2021586 2069719 2358517 2395659 3194212 3211068 4043172 4139438 4717034 4791318 6209157 7075551 8278876 9434068 9582636 12418314 14151102 14488033 24836628 28302204 28976066 43464099 57952132 86928198 101416231 173856396 202832462 304248693 405664924 608497386 1216994772
• Sum of all divisors σ(n): 3415695360
• Sum of proper divisors (its aliquot sum) s(n): 2198700588
• 1216994772 is an abundant number, because the sum of its proper divisors (2198700588) is greater than itself. Its abundance is 981705816

Bases of 1216994772

• Binary: 1001000100010011101110111010100₂
• Hexadecimal: 0x4889DDD4
• Base-36: K4KF6C

Squares and roots of 1216994772

• 1216994772 squared (1216994772²) is 1481076275075331984
• 1216994772 cubed (1216994772³) is 1802462083699912930692387648
• The square root of 1216994772 is 34885.4521541573
• The cube root of 1216994772 is 1067.6516384067

Scales and comparisons

• 1,216,994,772 seconds is equal to 38 years, 36 weeks, 1 day, 14 hours, 6 minutes, 12 seconds.
• To count from 1 to 1,216,994,772 would take you about seventy-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 1216994772 cubic inches would be around 89 feet tall.

Recreational maths with 1216994772

• 1216994772 backwards is 2774996121
• The number of decimal digits it has is: 10
• The sum of 1216994772's digits is 48
• More coming soon!