20399121072

Names of 20399121072

• Cardinal: 20399121072 can be written as Twenty billion, three hundred ninety-nine million, one hundred twenty-one thousand and seventy-two.

Scientific notation

• Scientific notation: 2.0399121072 × 10¹⁰

Factors of 20399121072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 15358

Divisors of 20399121072

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 29 33 36 44 48 58 66 72 87 88 99 116 132 144 174 176 198 232 261 264 319 348 396 464 522 528 638 696 792 841 957 1044 1276 1392 1584 1682 1914 2088 2523 2552 2871 3364 3828 4176 5046 5104 5742 6728 7569 7656 9251 10092 11484 13456 15138 15312 15313 18502 20184 22968 27753 30276 30626 37004 40368 45936 45939 55506 60552 61252 74008 83259 91878 111012 121104 122504 137817 148016 166518 168443 183756 222024 245008 275634 333036 336886 367512 444048 444077 505329 551268 666072 673772 735024 888154 1010658 1102536 1332144 1332231 1347544 1515987 1776308 2021316 2205072 2664462 2695088 3031974 3552616 3996693 4042632 4884847 5328924 6063948 7105232 7993386 8085264 9769694 10657848 12127896 12878233 14654541 15986772 19539388 21315696 24255792 25756466 29309082 31973544 38634699 39078776 43963623 51512932 58618164 63947088 77269398 78157552 87927246 103025864 115904097 117236328 141660563 154538796 175854492 206051728 231808194 234472656 283321126 309077592 351708984 424981689 463616388 566642252 618155184 703417968 849963378 927232776 1133284504 1274945067 1699926756 1854465552 2266569008 2549890134 3399853512 5099780268 6799707024 10199560536 20399121072
• Sum of all divisors σ(n): 64504956984
• Sum of proper divisors (its aliquot sum) s(n): 44105835912
• 20399121072 is an abundant number, because the sum of its proper divisors (44105835912) is greater than itself. Its abundance is 23706714840

Bases of 20399121072

• Binary: 10010111111111000011110001010110000₂
• Hexadecimal: 0x4BFE1E2B0
• Base-36: 9DD3YK0

Squares and roots of 20399121072

• 20399121072 squared (20399121072²) is 416124140510114429184
• 20399121072 cubed (20399121072³) is 8488566723247764081498586165248
• The square root of 20399121072 is 142825.4916742807
• The cube root of 20399121072 is 2732.3551740609

Scales and comparisons

• 20,399,121,072 seconds is equal to 648 years, 32 weeks, 4 days, 22 hours, 31 minutes, 12 seconds.
• To count from 1 to 20,399,121,072 would take you about one thousand, two hundred ninety-seven 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 20399121072 cubic inches would be around 227.7 feet tall.

Recreational maths with 20399121072

• 20399121072 backwards is 27012199302
• 20399121072 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20399121072's digits is 36
• More coming soon!