7128139824

Names of 7128139824

• Cardinal: 7128139824 can be written as Seven billion, one hundred twenty-eight million, one hundred thirty-nine thousand, eight hundred twenty-four.

Scientific notation

• Scientific notation: 7.128139824 × 10⁹

Factors of 7128139824

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 336

Divisors of 7128139824

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 151 156 167 208 234 302 312 334 453 468 501 604 624 668 906 936 1002 1208 1336 1359 1503 1812 1872 1963 2004 2171 2416 2672 2718 3006 3624 3926 4008 4342 5436 5889 6012 6513 7248 7852 8016 8684 10872 11778 12024 13026 15704 17368 17667 19539 21744 22801 23556 24048 25217 26052 31408 34736 35334 39078 45602 47112 50434 52104 68403 70668 75651 78156 91204 94224 100868 104208 136806 141336 151302 156312 182408 201736 205209 226953 273612 282672 296413 302604 312624 327821 364816 403472 410418 453906 547224 592826 605208 655642 820836 889239 907812 983463 1094448 1185652 1210416 1311284 1641672 1778478 1815624 1966926 2371304 2622568 2667717 2950389 3283344 3556956 3631248 3807767 3933852 4742608 5245136 5335434 5900778 7113912 7615534 7867704 10670868 11423301 11801556 14227824 15231068 15735408 21341736 22846602 23603112 30462136 34269903 42683472 45693204 47206224 49500971 60924272 68539806 91386408 99001942 137079612 148502913 182772816 198003884 274159224 297005826 396007768 445508739 548318448 594011652 792015536 891017478 1188023304 1782034956 2376046608 3564069912 7128139824
• Sum of all divisors σ(n): 21756138768
• Sum of proper divisors (its aliquot sum) s(n): 14627998944
• 7128139824 is an abundant number, because the sum of its proper divisors (14627998944) is greater than itself. Its abundance is 7499859120

Bases of 7128139824

• Binary: 110101000110111101100100000110000₂
• Hexadecimal: 0x1A8DEC830
• Base-36: 39VWRW0

Squares and roots of 7128139824

• 7128139824 squared (7128139824²) is 50810377350494750976
• 7128139824 cubed (7128139824³) is 362183474264529240534988468224
• The square root of 7128139824 is 84428.3117443431
• The cube root of 7128139824 is 1924.5331818175

Scales and comparisons

• 7,128,139,824 seconds is equal to 226 years, 33 weeks, 6 days, 14 hours, 50 minutes, 24 seconds.
• To count from 1 to 7,128,139,824 would take you about four hundred fifty-three 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 7128139824 cubic inches would be around 160.4 feet tall.

Recreational maths with 7128139824

• 7128139824 backwards is 4289318217
• The number of decimal digits it has is: 10
• The sum of 7128139824's digits is 45
• More coming soon!