129979409940

Names of 129979409940

• Cardinal: 129979409940 can be written as One hundred twenty-nine billion, nine hundred seventy-nine million, four hundred nine thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.2997940994 × 10¹¹

Factors of 129979409940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2983

Divisors of 129979409940

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 167 180 270 334 501 540 668 677 835 1002 1354 1503 1670 2004 2031 2129 2505 2708 3006 3340 3385 4062 4258 4509 5010 6012 6093 6387 6770 7515 8124 8516 9018 10020 10155 10645 12186 12774 13540 15030 18036 18279 19161 20310 21290 22545 24372 25548 30060 30465 31935 36558 38322 40620 42580 45090 57483 60930 63870 73116 76644 90180 91395 95805 113059 114966 121860 127740 182790 191610 226118 229932 287415 339177 355543 365580 383220 452236 565295 574830 678354 711086 1017531 1066629 1130590 1149660 1356708 1422172 1441333 1695885 1777715 2035062 2133258 2261180 2882666 3052593 3199887 3391770 3555430 4070124 4266516 4323999 5087655 5333145 5765332 6105186 6399774 6783540 7110860 7206665 8647998 9599661 10175310 10666290 12210372 12799548 12971997 14413330 15262965 15999435 17295996 19199322 20350620 21332580 21619995 25943994 28826660 30525930 31998870 38398644 38915991 43239990 47998305 51887988 61051860 63997740 64859985 77831982 86479980 95996610 129719970 155663964 191993220 194579955 240702611 259439940 389159910 481405222 722107833 778319820 962810444 1203513055 1444215666 2166323499 2407026110 2888431332 3610539165 4332646998 4814052220 6498970497 7221078330 8665293996 10831617495 12997940994 14442156660 21663234990 25995881988 32494852485 43326469980 64989704970 129979409940
• Sum of all divisors σ(n): 407594073600
• Sum of proper divisors (its aliquot sum) s(n): 277614663660
• 129979409940 is an abundant number, because the sum of its proper divisors (277614663660) is greater than itself. Its abundance is 147635253720

Bases of 129979409940

• Binary: 1111001000011011000000110011000010100₂
• Hexadecimal: 0x1E43606614
• Base-36: 1NPMDUL0

Squares and roots of 129979409940

• 129979409940 squared (129979409940²) is 16894647008350570803600
• 129979409940 cubed (129979409940³) is 2195956249289993445714119627784000
• The square root of 129979409940 is 360526.5731399003
• The cube root of 129979409940 is 5065.5295560961

Scales and comparisons

• 129,979,409,940 seconds is equal to 4,132 years, 49 weeks, 7 hours, 39 minutes.
• To count from 1 to 129,979,409,940 would take you about eight thousand, two hundred sixty-five 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 129979409940 cubic inches would be around 422.1 feet tall.

Recreational maths with 129979409940

• 129979409940 backwards is 049904979921
• The number of decimal digits it has is: 12
• The sum of 129979409940's digits is 63
• More coming soon!