20428390400

Names of 20428390400

• Cardinal: 20428390400 can be written as Twenty billion, four hundred twenty-eight million, three hundred ninety thousand, four hundred.

Scientific notation

• Scientific notation: 2.04283904 × 10¹⁰

Factors of 20428390400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 2285

Divisors of 20428390400

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 64 80 88 100 110 128 160 176 200 220 256 275 320 352 400 440 512 550 640 704 800 880 1024 1100 1280 1408 1600 1760 2048 2200 2267 2560 2816 3200 3520 4096 4400 4534 5120 5632 6400 7040 8192 8800 9068 10240 11264 11335 12800 14080 16384 17600 18136 20480 22528 22670 24937 25600 28160 32768 35200 36272 40960 45056 45340 49874 51200 56320 56675 70400 72544 81920 90112 90680 99748 102400 112640 113350 124685 140800 145088 163840 180224 181360 199496 204800 225280 226700 249370 281600 290176 360448 362720 398992 409600 450560 453400 498740 563200 580352 623425 725440 797984 819200 901120 906800 997480 1126400 1160704 1246850 1450880 1595968 1802240 1813600 1994960 2252800 2321408 2493700 2901760 3191936 3627200 3989920 4505600 4642816 4987400 5803520 6383872 7254400 7979840 9011200 9285632 9974800 11607040 12767744 14508800 15959680 18571264 19949600 23214080 25535488 29017600 31919360 37142528 39899200 46428160 51070976 58035200 63838720 74285056 79798400 92856320 102141952 116070400 127677440 159596800 185712640 204283904 232140800 255354880 319193600 371425280 408567808 464281600 510709760 638387200 817135616 928563200 1021419520 1276774400 1857126400 2042839040 2553548800 4085678080 5107097600 10214195200 20428390400
• Sum of all divisors σ(n): 55291617360
• Sum of proper divisors (its aliquot sum) s(n): 34863226960
• 20428390400 is an abundant number, because the sum of its proper divisors (34863226960) is greater than itself. Its abundance is 14434836560

Bases of 20428390400

• Binary: 10011000001101000001000000000000000₂
• Hexadecimal: 0x4C1A08000
• Base-36: 9DUJAWW

Squares and roots of 20428390400

• 20428390400 squared (20428390400²) is 417319134334812160000
• 20428390400 cubed (20428390400³) is 8525158197581587115147264000000
• The square root of 20428390400 is 142927.9202955111
• The cube root of 20428390400 is 2733.6613738089

Scales and comparisons

• 20,428,390,400 seconds is equal to 649 years, 29 weeks, 16 hours, 53 minutes, 20 seconds.
• To count from 1 to 20,428,390,400 would take you about one thousand, two hundred ninety-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 20428390400 cubic inches would be around 227.8 feet tall.

Recreational maths with 20428390400

• 20428390400 backwards is 00409382402
• 20428390400 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20428390400's digits is 32
• More coming soon!