385864128

Names of 385864128

• Cardinal: 385864128 can be written as Three hundred eighty-five million, eight hundred sixty-four thousand, one hundred twenty-eight.

Scientific notation

• Scientific notation: 3.85864128 × 10⁸

Factors of 385864128

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 300

Divisors of 385864128

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 48 52 54 64 72 78 89 96 104 108 117 144 156 178 192 193 208 216 234 267 288 312 351 356 386 416 432 468 534 576 579 624 702 712 772 801 832 864 936 1068 1157 1158 1248 1404 1424 1544 1602 1728 1737 1872 2136 2314 2316 2403 2496 2509 2808 2848 3088 3204 3471 3474 3744 4272 4628 4632 4806 5018 5211 5616 5696 6176 6408 6942 6948 7488 7527 8544 9256 9264 9612 10036 10413 10422 11232 12352 12816 13884 13896 15054 17088 17177 18512 18528 19224 20072 20826 20844 22464 22581 25632 27768 27792 30108 31239 34354 37024 37056 38448 40144 41652 41688 45162 51264 51531 55536 55584 60216 62478 67743 68708 74048 76896 80288 83304 83376 90324 103062 111072 111168 120432 124956 135486 137416 153792 154593 160576 166608 166752 180648 206124 222144 223301 240864 249912 270972 274832 309186 333216 333504 361296 412248 446602 463779 481728 499824 541944 549664 618372 666432 669903 722592 824496 893204 927558 999648 1083888 1099328 1236744 1339806 1445184 1648992 1786408 1855116 1999296 2009709 2167776 2473488 2679612 3297984 3572816 3710232 4019418 4335552 4946976 5359224 6029127 7145632 7420464 8038836 9893952 10718448 12058254 14291264 14840928 16077672 21436896 24116508 29681856 32155344 42873792 48233016 64310688 96466032 128621376 192932064 385864128
• Sum of all divisors σ(n): 1241755200
• Sum of proper divisors (its aliquot sum) s(n): 855891072
• 385864128 is an abundant number, because the sum of its proper divisors (855891072) is greater than itself. Its abundance is 470026944

Bases of 385864128

• Binary: 10110111111111101000111000000₂
• Hexadecimal: 0x16FFD1C0
• Base-36: 6DQEO0

Squares and roots of 385864128

• 385864128 squared (385864128²) is 148891125277200384
• 385864128 cubed (385864128³) is 57451744222025684453425152
• The square root of 385864128 is 19643.4245486881
• The cube root of 385864128 is 728.0225006127

Scales and comparisons

• 385,864,128 seconds is equal to 12 years, 14 weeks, 28 minutes, 48 seconds.
• To count from 1 to 385,864,128 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 385864128 cubic inches would be around 60.7 feet tall.

Recreational maths with 385864128

• 385864128 backwards is 821468583
• The number of decimal digits it has is: 9
• The sum of 385864128's digits is 45
• More coming soon!