389220390

Names of 389220390

• Cardinal: 389220390 can be written as Three hundred eighty-nine million, two hundred twenty thousand, three hundred ninety.

Scientific notation

• Scientific notation: 3.8922039 × 10⁸

Factors of 389220390

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 60

Divisors of 389220390

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 26 27 30 37 39 45 54 65 74 78 81 90 111 117 130 135 162 185 195 222 234 243 270 333 351 370 390 405 481 486 555 585 666 702 729 810 962 999 1053 1110 1170 1215 1369 1443 1458 1665 1755 1998 2106 2187 2405 2430 2738 2886 2997 3159 3330 3510 3645 4107 4329 4374 4810 4995 5265 5994 6318 6845 7215 7290 8214 8658 8991 9477 9990 10530 10935 12321 12987 13690 14430 14985 15795 17797 17982 18954 20535 21645 21870 24642 25974 26973 28431 29970 31590 35594 36963 38961 41070 43290 44955 47385 53391 53946 56862 61605 64935 73926 77922 80919 88985 89910 94770 106782 110889 116883 123210 129870 134865 142155 160173 161838 177970 184815 194805 221778 233766 266955 269730 284310 320346 332667 350649 369630 389610 404595 480519 533910 554445 584415 665334 701298 800865 809190 961038 998001 1051947 1108890 1168830 1441557 1601730 1663335 1753245 1996002 2103894 2402595 2883114 2994003 3326670 3506490 4324671 4805190 4990005 5259735 5988006 7207785 8649342 9980010 10519470 12974013 14415570 14970015 21623355 25948026 29940030 38922039 43246710 64870065 77844078 129740130 194610195 389220390
• Sum of all divisors σ(n): 1162969920
• Sum of proper divisors (its aliquot sum) s(n): 773749530
• 389220390 is an abundant number, because the sum of its proper divisors (773749530) is greater than itself. Its abundance is 384529140

Bases of 389220390

• Binary: 10111001100110000100000100110₂
• Hexadecimal: 0x17330826
• Base-36: 6FQCDI

Squares and roots of 389220390

• 389220390 squared (389220390²) is 151492511991752100
• 389220390 cubed (389220390³) is 58963974599509429145319000
• The square root of 389220390 is 19728.6692404733
• The cube root of 389220390 is 730.1271999525

Scales and comparisons

• 389,220,390 seconds is equal to 12 years, 19 weeks, 3 days, 20 hours, 46 minutes, 30 seconds.
• To count from 1 to 389,220,390 would take you about eighteen 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 389220390 cubic inches would be around 60.8 feet tall.

Recreational maths with 389220390

• 389220390 backwards is 093022983
• The number of decimal digits it has is: 9
• The sum of 389220390's digits is 36
• More coming soon!