128402507091012

Names of 128402507091012

• Cardinal: 128402507091012 can be written as One hundred twenty-eight trillion, four hundred two billion, five hundred seven million, ninety-one thousand and twelve.

Scientific notation

• Scientific notation: 1.28402507091012 × 10¹⁴

Factors of 128402507091012

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 140920

Divisors of 128402507091012

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 49 66 77 84 98 132 147 154 196 231 294 308 462 539 588 924 1078 1617 2156 3234 6468 140897 281794 422691 563588 845382 986279 1549867 1690764 1972558 2958837 3099734 3945116 4649601 5917674 6199468 6903953 9299202 10849069 11835348 13807906 18598404 20711859 21698138 27615812 32547207 41423718 43396276 65094414 75943483 82847436 130188828 151886966 227830449 303773932 455660898 911321796 19851964609 39703929218 59555893827 79407858436 119111787654 138963752263 218371610699 238223575308 277927504526 416891256789 436743221398 555855009052 655114832097 833782513578 873486442796 972746265841 1310229664194 1528601274893 1667565027156 1945492531682 2620459328388 2918238797523 3057202549786 3890985063364 4585803824679 5836477595046 6114405099572 9171607649358 10700208924251 11672955190092 18343215298716 21400417848502 32100626772753 42800835697004 64201253545506 128402507091012
• Sum of all divisors σ(n): 380207524670064
• Sum of proper divisors (its aliquot sum) s(n): 251805017579052
• 128402507091012 is an abundant number, because the sum of its proper divisors (251805017579052) is greater than itself. Its abundance is 123402510488040

Bases of 128402507091012

• Binary: 11101001100100000001001110100101100110001000100₂
• Hexadecimal: 0x74C809D2CC44
• Base-36: 19IJAPGTVO

Squares and roots of 128402507091012

• 128402507091012 squared (128402507091012²) is 16487203827257386942451184144
• 128402507091012 cubed (128402507091012³) is 2116998306340376812406146069614616179313728
• The square root of 128402507091012 is 11331483.0049297609
• The cube root of 128402507091012 is 50449.6124661047

Scales and comparisons

• 128,402,507,091,012 seconds is equal to 4,082,802 years, 28 weeks, 4 days, 8 hours, 50 minutes, 12 seconds.
• To count from 1 to 128,402,507,091,012 would take you about ten million, two hundred seven thousand and six 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 128402507091012 cubic inches would be around 4204.1 feet tall.

Recreational maths with 128402507091012

• 128402507091012 backwards is 210190705204821
• 128402507091012 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 128402507091012's digits is 42
• More coming soon!