90430990

Names of 90430990

• Cardinal: 90430990 can be written as Ninety million, four hundred thirty thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 9.043099 × 10⁷

Factors of 90430990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 149

Divisors of 90430990

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 5 10 13 17 26 29 34 58 65 83 85 130 145 166 170 221 289 290 377 415 442 493 578 754 830 986 1079 1105 1411 1445 1885 2158 2210 2407 2465 2822 2890 3757 3770 4814 4930 5395 6409 7055 7514 8381 10790 12035 12818 14110 16762 18343 18785 23987 24070 31291 32045 36686 37570 40919 41905 47974 62582 64090 81838 83810 91715 108953 119935 156455 183430 204595 217906 239870 311831 312910 409190 531947 544765 623662 695623 1063894 1089530 1391246 1559155 2659735 3118310 3478115 5319470 6956230 9043099 18086198 45215495 90430990
• Sum of all divisors σ(n): 194957280
• Sum of proper divisors (its aliquot sum) s(n): 104526290
• 90430990 is an abundant number, because the sum of its proper divisors (104526290) is greater than itself. Its abundance is 14095300

Bases of 90430990

• Binary: 101011000111101111000001110₂
• Hexadecimal: 0x563DE0E
• Base-36: 1HU8ZY

Squares and roots of 90430990

• 90430990 squared (90430990²) is 8177763952380100
• 90430990 cubed (90430990³) is 739523290200045299299000
• The square root of 90430990 is 9509.5210184321
• The cube root of 90430990 is 448.8546841845

Scales and comparisons

• 90,430,990 seconds is equal to 2 years, 45 weeks, 3 days, 15 hours, 43 minutes, 10 seconds.
• To count from 1 to 90,430,990 would take you about four 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 90430990 cubic inches would be around 37.4 feet tall.

Recreational maths with 90430990

• 90430990 backwards is 09903409
• 90430990 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 90430990's digits is 34
• More coming soon!