21381828204

Names of 21381828204

• Cardinal: 21381828204 can be written as Twenty-one billion, three hundred eighty-one million, eight hundred twenty-eight thousand, two hundred four.

Scientific notation

• Scientific notation: 2.1381828204 × 10¹⁰

Factors of 21381828204

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 226

Divisors of 21381828204

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 11 12 22 33 44 66 83 121 127 132 166 242 249 254 332 363 381 484 498 508 726 762 913 996 1331 1397 1452 1524 1826 2662 2739 2794 3652 3993 4191 5324 5478 5588 7986 8382 10043 10541 10956 15367 15972 16129 16764 20086 21082 30129 30734 31623 32258 40172 42164 46101 48387 60258 61468 63246 64516 92202 96774 110473 115951 120516 126492 169037 177419 184404 193548 220946 231902 331419 338074 347853 354838 441892 463804 507111 532257 662838 676148 695706 709676 1014222 1064514 1275461 1325676 1338707 1391412 1951609 2028444 2129028 2550922 2677414 3826383 3903218 4016121 5101844 5354828 5854827 7652766 7806436 8032242 11709654 14030071 14725777 15305532 16064484 21467699 23419308 28060142 29451554 42090213 42935398 44177331 56120284 58903108 64403097 84180426 85870796 88354662 128806194 161983547 168360852 176709324 257612388 323967094 485950641 647934188 971901282 1781819017 1943802564 3563638034 5345457051 7127276068 10690914102 21381828204
• Sum of all divisors σ(n): 55978183296
• Sum of proper divisors (its aliquot sum) s(n): 34596355092
• 21381828204 is an abundant number, because the sum of its proper divisors (34596355092) is greater than itself. Its abundance is 13214526888

Bases of 21381828204

• Binary: 10011111010011101001100111001101100₂
• Hexadecimal: 0x4FA74CE6C
• Base-36: 9TM6S8C

Squares and roots of 21381828204

• 21381828204 squared (21381828204²) is 457182577345369865616
• 21381828204 cubed (21381828204³) is 9775399326660640841439878633664
• The square root of 21381828204 is 146225.2652724555
• The cube root of 21381828204 is 2775.5450360967

Scales and comparisons

• 21,381,828,204 seconds is equal to 679 years, 45 weeks, 3 days, 20 hours, 43 minutes, 24 seconds.
• To count from 1 to 21,381,828,204 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 21381828204 cubic inches would be around 231.3 feet tall.

Recreational maths with 21381828204

• 21381828204 backwards is 40282818312
• The number of decimal digits it has is: 11
• The sum of 21381828204's digits is 39
• More coming soon!