21918333312

Names of 21918333312

• Cardinal: 21918333312 can be written as Twenty-one billion, nine hundred eighteen million, three hundred thirty-three thousand, three hundred twelve.

Scientific notation

• Scientific notation: 2.1918333312 × 10¹⁰

Factors of 21918333312

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1090

Divisors of 21918333312

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 89 96 128 144 178 192 267 288 313 356 384 534 576 626 683 712 801 939 1068 1152 1252 1366 1424 1602 1878 2049 2136 2504 2732 2817 2848 3204 3756 4098 4272 5008 5464 5634 5696 6147 6408 7512 8196 8544 10016 10928 11268 11392 12294 12816 15024 16392 17088 20032 21856 22536 24588 25632 27857 30048 32784 34176 40064 43712 45072 49176 51264 55714 60096 60787 65568 83571 87424 90144 98352 102528 111428 120192 121574 131136 167142 180288 182361 196704 213779 222856 243148 250713 262272 334284 360576 364722 393408 427558 445712 486296 501426 547083 641337 668568 729444 786816 855116 891424 972592 1002852 1094166 1282674 1337136 1458888 1710232 1782848 1924011 1945184 2005704 2188332 2565348 2674272 2917776 3420464 3565696 3848022 3890368 4011408 4376664 5130696 5348544 5835552 6840928 7696044 7780736 8022816 8753328 10261392 10697088 11671104 13681856 15392088 16045632 17506656 19026331 20522784 23342208 27363712 30784176 32091264 35013312 38052662 41045568 57078993 61568352 70026624 76105324 82091136 114157986 123136704 152210648 171236979 228315972 246273408 304421296 342473958 456631944 608842592 684947916 913263888 1217685184 1369895832 1826527776 2435370368 2739791664 3653055552 5479583328 7306111104 10959166656 21918333312
• Sum of all divisors σ(n): 64078419600
• Sum of proper divisors (its aliquot sum) s(n): 42160086288
• 21918333312 is an abundant number, because the sum of its proper divisors (42160086288) is greater than itself. Its abundance is 20241752976

Bases of 21918333312

• Binary: 10100011010011011110011100110000000₂
• Hexadecimal: 0x51A6F3980
• Base-36: A2HLY80

Squares and roots of 21918333312

• 21918333312 squared (21918333312²) is 480413335175928889344
• 21918333312 cubed (21918333312³) is 10529859607915583555851757027328
• The square root of 21918333312 is 148048.4154322497
• The cube root of 21918333312 is 2798.5678608141

Scales and comparisons

• 21,918,333,312 seconds is equal to 696 years, 48 weeks, 4 days, 9 hours, 55 minutes, 12 seconds.
• To count from 1 to 21,918,333,312 would take you about one thousand, three hundred ninety-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 21918333312 cubic inches would be around 233.2 feet tall.

Recreational maths with 21918333312

• 21918333312 backwards is 21333381912
• 21918333312 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21918333312's digits is 36
• More coming soon!