129528772992

Names of 129528772992

• Cardinal: 129528772992 can be written as One hundred twenty-nine billion, five hundred twenty-eight million, seven hundred seventy-two thousand, nine hundred ninety-two.

Scientific notation

• Scientific notation: 1.29528772992 × 10¹¹

Factors of 129528772992

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1807

Divisors of 129528772992

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 271 288 384 542 576 813 1084 1152 1531 1626 2168 2439 3062 3252 4336 4593 4878 6124 6504 8672 9186 9756 12248 13008 13779 17344 18372 19512 24496 26016 27558 34688 36744 39024 48992 52032 55116 73441 73488 78048 97984 104064 110232 146882 146976 156096 195968 220323 220464 293764 293952 312192 414901 440646 440928 587528 587904 660969 829802 881292 881856 1175056 1244703 1321938 1659604 1762584 1763712 2350112 2489406 2643876 3319208 3525168 3734109 4700224 4978812 5287752 6638416 7050336 7468218 9400448 9957624 10575504 13276832 14100672 14936436 19915248 21151008 26553664 28201344 29872872 39830496 42302016 53107328 59745744 79660992 84604032 112438171 119491488 159321984 224876342 238982976 337314513 449752684 477965952 674629026 899505368 1011943539 1349258052 1799010736 2023887078 2698516104 3598021472 4047774156 5397032208 7196042944 8095548312 10794064416 14392085888 16191096624 21588128832 32382193248 43176257664 64764386496 129528772992
• Sum of all divisors σ(n): 374357367540
• Sum of proper divisors (its aliquot sum) s(n): 244828594548
• 129528772992 is an abundant number, because the sum of its proper divisors (244828594548) is greater than itself. Its abundance is 115299821556

Bases of 129528772992

• Binary: 1111000101000100001000011100110000000₂
• Hexadecimal: 0x1E28843980
• Base-36: 1NI634W0

Squares and roots of 129528772992

• 129528772992 squared (129528772992²) is 16777703032813068632064
• 129528772992 cubed (129528772992³) is 2173195287464433894013533828415488
• The square root of 129528772992 is 359901.0600039963
• The cube root of 129528772992 is 5059.6687357277

Scales and comparisons

• 129,528,772,992 seconds is equal to 4,118 years, 31 weeks, 6 days, 14 hours, 43 minutes, 12 seconds.
• To count from 1 to 129,528,772,992 would take you about eight thousand, two hundred thirty-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 129528772992 cubic inches would be around 421.6 feet tall.

Recreational maths with 129528772992

• 129528772992 backwards is 299277825921
• The number of decimal digits it has is: 12
• The sum of 129528772992's digits is 63
• More coming soon!