21375742140

Names of 21375742140

• Cardinal: 21375742140 can be written as Twenty-one billion, three hundred seventy-five million, seven hundred forty-two thousand, one hundred forty.

Scientific notation

• Scientific notation: 2.137574214 × 10¹⁰

Factors of 21375742140

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6250246

Divisors of 21375742140

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 76 90 95 114 171 180 190 228 285 342 380 570 684 855 1140 1710 3420 6250217 12500434 18750651 25000868 31251085 37501302 56251953 62502170 75002604 93753255 112503906 118754123 125004340 187506510 225007812 237508246 281259765 356262369 375013020 475016492 562519530 593770615 712524738 1068787107 1125039060 1187541230 1425049476 1781311845 2137574214 2375082460 3562623690 4275148428 5343935535 7125247380 10687871070 21375742140
• Sum of all divisors σ(n): 68252380560
• Sum of proper divisors (its aliquot sum) s(n): 46876638420
• 21375742140 is an abundant number, because the sum of its proper divisors (46876638420) is greater than itself. Its abundance is 25500896280

Bases of 21375742140

• Binary: 10011111010000101111111000010111100₂
• Hexadecimal: 0x4FA17F0BC
• Base-36: 9TIKC70

Squares and roots of 21375742140

• 21375742140 squared (21375742140²) is 456922352035771779600
• 21375742140 cubed (21375742140³) is 9767054375118961616618512344000
• The square root of 21375742140 is 146204.4532153519
• The cube root of 21375742140 is 2775.2816699721

Scales and comparisons

• 21,375,742,140 seconds is equal to 679 years, 35 weeks, 3 days, 10 hours, 9 minutes.
• To count from 1 to 21,375,742,140 would take you about one thousand, three hundred fifty-nine 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 21375742140 cubic inches would be around 231.3 feet tall.

Recreational maths with 21375742140

• 21375742140 backwards is 04124757312
• 21375742140 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21375742140's digits is 36
• More coming soon!