821900890146730140

Names of 821900890146730140

• Cardinal: 821900890146730140 can be written as Eight hundred twenty-one quadrillion, nine hundred trillion, eight hundred ninety billion, one hundred forty-six million, seven hundred thirty thousand, one hundred forty.

Scientific notation

• Scientific notation: 8.2190089014673014 × 10¹⁷

Factors of 821900890146730140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 45535607

Divisors of 821900890146730140

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 29 30 36 45 58 60 87 90 116 145 174 180 261 290 348 435 522 580 870 1044 1305 1740 2610 5220 3769897 7539794 11309691 15079588 18849485 22619382 33929073 37698970 41765671 45238764 56548455 67858146 75397940 83531342 109327013 113096910 125297013 135716292 167062684 169645365 208828355 218654026 226193820 250594026 327981039 339290730 375891039 417656710 437308052 501188052 546635065 626485065 655962078 678581460 751782078 835313420 983943117 1093270130 1211204459 1252970130 1311924156 1503564156 1639905195 1879455195 1967886234 2186540260 2422408918 2505940260 3279810390 3633613377 3758910390 3935772468 4844817836 4919715585 6056022295 6559620780 7267226754 7517820780 9839431170 10900840131 12112044590 14534453508 18168066885 19678862340 21801680262 24224089180 36336133770 43603360524 54504200655 72672267540 109008401310 218016802620 157452277805887 314904555611774 472356833417661 629809111223548 787261389029435 944713666835322 1417070500252983 1574522778058870 1889427333670644 2361784167088305 2834141000505966 3149045556117740 4566116056370723 4723568334176610 5668282001011932 7085352501264915 9132232112741446 9447136668353220 13698348169112169 14170705002529830 18264464225482892 22830580281853615 27396696338224338 28341410005059660 41095044507336507 45661160563707230 54793392676448676 68491740845560845 82190089014673014 91322321127414460 136983481691121690 164380178029346028 205475222536682535 273966963382243380 410950445073365070 821900890146730140
• Sum of all divisors σ(n): 2579069056333049280
• Sum of proper divisors (its aliquot sum) s(n): 1757168166186319140
• 821900890146730140 is an abundant number, because the sum of its proper divisors (1757168166186319140) is greater than itself. Its abundance is 935267276039589000

Bases of 821900890146730140

• Binary: 101101100111111110101000000101000101110001011111000010011100₂
• Hexadecimal: 0xB67FA8145C5F09C
• Base-36: 68SRJSFP8KV0

Squares and roots of 821900890146730140

• 821900890146730140 squared (821900890146730140²) is 675521073223987365333178933984419600
• 821900890146730140 cubed (821900890146730140³) is 555211371395669686563200829844614207002028645726744000
• The square root of 821900890146730140 is 906587497.2371558909
• The cube root of 821900890146730140 is 936712.8620746849

Scales and comparisons

• 821,900,890,146,730,140 seconds is equal to 26,133,906,000 years, 15 weeks, 16 hours, 9 minutes.
• To count from 1 to 821,900,890,146,730,140 would take you about seventy-eight billion, four hundred one million, seven hundred eighteen thousand 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 821900890146730140 cubic inches would be around 78059.4 feet tall.

Recreational maths with 821900890146730140

• 821900890146730140 backwards is 041037641098009128
• The number of decimal digits it has is: 18
• The sum of 821900890146730140's digits is 63
• More coming soon!