1221362142

Names of 1221362142

• Cardinal: 1221362142 can be written as One billion, two hundred twenty-one million, three hundred sixty-two thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 1.221362142 × 10⁹

Factors of 1221362142

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 194

Divisors of 1221362142

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 7 11 13 14 19 21 22 26 33 38 39 42 49 57 66 77 78 91 98 114 121 133 139 143 147 154 182 209 231 242 247 266 273 278 286 294 363 399 417 418 429 462 494 539 546 627 637 726 741 798 834 847 858 931 973 1001 1078 1254 1274 1463 1482 1529 1573 1617 1694 1729 1807 1862 1911 1946 2002 2299 2541 2641 2717 2793 2919 2926 3003 3058 3146 3234 3458 3614 3822 4389 4587 4598 4719 5082 5187 5282 5421 5434 5586 5838 5929 6006 6811 6897 7007 7923 8151 8778 9174 9438 10241 10374 10703 10842 11011 11858 12103 12649 13622 13794 14014 15846 16093 16302 16819 17787 18487 19019 19877 20433 20482 21021 21406 22022 24206 25298 29051 29887 30723 32109 32186 33033 33638 34333 35574 36309 36974 37947 38038 39754 40866 42042 48279 50457 55461 57057 58102 59631 59774 61446 64218 66066 68666 72618 74921 75894 77077 87153 88543 89661 96558 100914 102999 110922 112651 114114 117733 119262 129409 133133 139139 149842 154154 174306 177086 179322 203357 205998 209209 218647 224763 225302 231231 235466 240331 258818 265629 266266 278278 319561 337953 353199 377663 388227 399399 406714 417417 418418 437294 449526 462462 480662 531258 610071 627627 639122 655941 675906 706398 720993 755326 776454 798798 824131 834834 958683 973973 1132989 1220142 1255254 1311882 1423499 1441986 1464463 1530529 1648262 1682317 1917366 1947946 2236927 2265978 2472393 2643641 2846998 2921919 2928926 3061058 3364634 4154293 4270497 4393389 4473854 4591587 4944786 5046951 5287282 5843838 6710781 7930923 8308586 8540994 8786778 9183174 10093902 10713703 12462879 13421562 15658489 15861846 18505487 21427406 24925758 29080051 31316978 32141109 37010974 46975467 55516461 58160102 64282218 87240153 93950934 111032922 174480306 203560357 407120714 610681071 1221362142
• Sum of all divisors σ(n): 3566102400
• Sum of proper divisors (its aliquot sum) s(n): 2344740258
• 1221362142 is an abundant number, because the sum of its proper divisors (2344740258) is greater than itself. Its abundance is 1123378116

Bases of 1221362142

• Binary: 1001000110011001000000111011110₂
• Hexadecimal: 0x48CC81DE
• Base-36: K76126

Squares and roots of 1221362142

• 1221362142 squared (1221362142²) is 1491725481910828164
• 1221362142 cubed (1221362142³) is 1821937029862591339376967288
• The square root of 1221362142 is 34947.9919594817
• The cube root of 1221362142 is 1068.9272568893

Scales and comparisons

• 1,221,362,142 seconds is equal to 38 years, 43 weeks, 3 days, 3 hours, 15 minutes, 42 seconds.
• To count from 1 to 1,221,362,142 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 1221362142 cubic inches would be around 89.1 feet tall.

Recreational maths with 1221362142

• 1221362142 backwards is 2412631221
• The number of decimal digits it has is: 10
• The sum of 1221362142's digits is 24
• More coming soon!