21312022400

Names of 21312022400

• Cardinal: 21312022400 can be written as Twenty-one billion, three hundred twelve million, twenty-two thousand, four hundred.

Scientific notation

• Scientific notation: 2.13120224 × 10¹⁰

Factors of 21312022400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 363

Divisors of 21312022400

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 127 128 160 200 229 254 320 400 458 508 635 640 800 916 1016 1145 1270 1600 1832 2032 2290 2540 3175 3200 3664 4064 4580 5080 5725 6350 7328 8128 9160 10160 11450 12700 14656 16256 18320 20320 22900 25400 29083 29312 36640 40640 45800 50800 52441 58166 73280 81280 91600 101600 104882 116332 145415 146560 183200 203200 209764 232664 262205 290830 366400 406400 419528 465328 524410 581660 727075 732800 839056 930656 1048820 1163320 1311025 1454150 1678112 1861312 2097640 2326640 2622050 2908300 3356224 3722624 4195280 4653280 5244100 5816600 6660007 6712448 8390560 9306560 10488200 11633200 13320014 16781120 18613120 20976400 23266400 26640028 33300035 33562240 41952800 46532800 53280056 66600070 83905600 93065600 106560112 133200140 166500175 167811200 213120224 266400280 333000350 426240448 532800560 666000700 852480896 1065601120 1332001400 2131202240 2664002800 4262404480 5328005600 10656011200 21312022400
• Sum of all divisors σ(n): 53294624640
• Sum of proper divisors (its aliquot sum) s(n): 31982602240
• 21312022400 is an abundant number, because the sum of its proper divisors (31982602240) is greater than itself. Its abundance is 10670579840

Bases of 21312022400

• Binary: 10011110110010010111010011110000000₂
• Hexadecimal: 0x4F64BA780
• Base-36: 9SGMLQ8

Squares and roots of 21312022400

• 21312022400 squared (21312022400²) is 454202298778101760000
• 21312022400 cubed (21312022400³) is 9679969565690397338599424000000
• The square root of 21312022400 is 145986.3774466645
• The cube root of 21312022400 is 2772.5212787247

Scales and comparisons

• 21,312,022,400 seconds is equal to 677 years, 34 weeks, 22 hours, 13 minutes, 20 seconds.
• To count from 1 to 21,312,022,400 would take you about one thousand, three hundred fifty-five 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 21312022400 cubic inches would be around 231 feet tall.

Recreational maths with 21312022400

• 21312022400 backwards is 00422021312
• The number of decimal digits it has is: 11
• The sum of 21312022400's digits is 17
• More coming soon!