20972160

Names of 20972160

• Cardinal: 20972160 can be written as Twenty million, nine hundred seventy-two thousand, one hundred sixty.

Scientific notation

• Scientific notation: 2.097216 × 10⁷

Factors of 20972160

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 352

Divisors of 20972160

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 11 12 15 16 18 20 22 24 30 32 33 36 40 44 45 48 55 60 64 66 72 80 88 90 96 99 110 120 128 132 144 160 165 176 180 192 198 220 240 264 288 320 330 331 352 360 384 396 440 480 495 528 576 640 660 662 704 720 792 880 960 990 993 1056 1152 1320 1324 1408 1440 1584 1655 1760 1920 1980 1986 2112 2640 2648 2880 2979 3168 3310 3520 3641 3960 3972 4224 4965 5280 5296 5760 5958 6336 6620 7040 7282 7920 7944 9930 10560 10592 10923 11916 12672 13240 14564 14895 15840 15888 18205 19860 21120 21184 21846 23832 26480 29128 29790 31680 31776 32769 36410 39720 42368 43692 47664 52960 54615 58256 59580 63360 63552 65538 72820 79440 87384 95328 105920 109230 116512 119160 127104 131076 145640 158880 163845 174768 190656 211840 218460 233024 238320 262152 291280 317760 327690 349536 381312 436920 466048 476640 524304 582560 635520 655380 699072 873840 953280 1048608 1165120 1310760 1398144 1747680 1906560 2097216 2330240 2621520 3495360 4194432 5243040 6990720 10486080 20972160
• Sum of all divisors σ(n): 79241760
• Sum of proper divisors (its aliquot sum) s(n): 58269600
• 20972160 is an abundant number, because the sum of its proper divisors (58269600) is greater than itself. Its abundance is 37297440

Bases of 20972160

• Binary: 1010000000000001010000000₂
• Hexadecimal: 0x1400280
• Base-36: CHI80

Squares and roots of 20972160

• 20972160 squared (20972160²) is 439831495065600
• 20972160 cubed (20972160³) is 9224216487554973696000
• The square root of 20972160 is 4579.5370945107
• The cube root of 20972160 is 275.7704455491

Scales and comparisons

• 20,972,160 seconds is equal to 34 weeks, 4 days, 17 hours, 36 minutes.
• To count from 1 to 20,972,160 would take you about two hours!

  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 20972160 cubic inches would be around 23 feet tall.

Recreational maths with 20972160

• 20972160 backwards is 06127902
• The number of decimal digits it has is: 8
• The sum of 20972160's digits is 27
• More coming soon!