389421312

Names of 389421312

• Cardinal: 389421312 can be written as Three hundred eighty-nine million, four hundred twenty-one thousand, three hundred twelve.

Scientific notation

• Scientific notation: 3.89421312 × 10⁸

Factors of 389421312

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 4290

Divisors of 389421312

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 17 21 24 28 32 34 42 48 51 56 64 68 84 96 102 112 119 128 136 168 192 204 224 238 256 272 336 357 384 408 448 476 544 672 714 768 816 896 952 1088 1344 1428 1632 1792 1904 2176 2688 2856 3264 3808 4261 4352 5376 5712 6528 7616 8522 11424 12783 13056 15232 17044 22848 25566 29827 30464 34088 45696 51132 59654 68176 72437 89481 91392 102264 119308 136352 144874 178962 204528 217311 238616 272704 289748 357924 409056 434622 477232 507059 545408 579496 715848 818112 869244 954464 1014118 1090816 1158992 1431696 1521177 1636224 1738488 1908928 2028236 2317984 2863392 3042354 3272448 3476976 3817856 4056472 4635968 5726784 6084708 6953952 7635712 8112944 9271936 11453568 12169416 13907904 16225888 18543872 22907136 24338832 27815808 32451776 48677664 55631616 64903552 97355328 129807104 194710656 389421312
• Sum of all divisors σ(n): 1254460032
• Sum of proper divisors (its aliquot sum) s(n): 865038720
• 389421312 is an abundant number, because the sum of its proper divisors (865038720) is greater than itself. Its abundance is 475617408

Bases of 389421312

• Binary: 10111001101100001100100000000₂
• Hexadecimal: 0x17361900
• Base-36: 6FUNEO

Squares and roots of 389421312

• 389421312 squared (389421312²) is 151648958239801344
• 389421312 cubed (389421312³) is 59055336281176649999843328
• The square root of 389421312 is 19733.7607160927
• The cube root of 389421312 is 730.2528129177

Scales and comparisons

• 389,421,312 seconds is equal to 12 years, 19 weeks, 6 days, 4 hours, 35 minutes, 12 seconds.
• To count from 1 to 389,421,312 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 389421312 cubic inches would be around 60.9 feet tall.

Recreational maths with 389421312

• 389421312 backwards is 213124983
• The number of decimal digits it has is: 9
• The sum of 389421312's digits is 33
• More coming soon!