90400198420

Names of 90400198420

• Cardinal: 90400198420 can be written as Ninety billion, four hundred million, one hundred ninety-eight thousand, four hundred twenty.

Scientific notation

• Scientific notation: 9.040019842 × 10¹⁰

Factors of 90400198420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 83535

Divisors of 90400198420

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 10 14 19 20 28 35 38 70 76 95 133 140 190 266 380 409 532 665 818 1330 1636 2045 2660 2863 4090 5726 7771 8180 11452 14315 15542 28630 31084 38855 54397 57260 77710 83093 108794 155420 166186 217588 271985 332372 415465 543970 581651 830930 1087940 1163302 1578767 1661860 2326604 2908255 3157534 5816510 6315068 7893835 11051369 11633020 15787670 22102738 31575340 33985037 44205476 55256845 67970074 110513690 135940148 169925185 221027380 237895259 339850370 475790518 645715703 679700740 951581036 1189476295 1291431406 2378952590 2582862812 3228578515 4520009921 4757905180 6457157030 9040019842 12914314060 18080039684 22600049605 45200099210 90400198420
• Sum of all divisors σ(n): 228940588800
• Sum of proper divisors (its aliquot sum) s(n): 138540390380
• 90400198420 is an abundant number, because the sum of its proper divisors (138540390380) is greater than itself. Its abundance is 48140191960

Bases of 90400198420

• Binary: 1010100001100010001011000111100010100₂
• Hexadecimal: 0x150C458F14
• Base-36: 15J1XZIS

Squares and roots of 90400198420

• 90400198420 squared (90400198420²) is 8172195874375370496400
• 90400198420 cubed (90400198420³) is 738768128570638886435573895688000
• The square root of 90400198420 is 300666.2575348289
• The cube root of 90400198420 is 4488.0373367937

Scales and comparisons

• 90,400,198,420 seconds is equal to 2,874 years, 23 weeks, 1 day, 14 hours, 13 minutes, 40 seconds.
• To count from 1 to 90,400,198,420 would take you about five thousand, seven hundred forty-eight 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 90400198420 cubic inches would be around 374 feet tall.

Recreational maths with 90400198420

• 90400198420 backwards is 02489100409
• The number of decimal digits it has is: 11
• The sum of 90400198420's digits is 37
• More coming soon!