128347968

Names of 128347968

• Cardinal: 128347968 can be written as One hundred twenty-eight million, three hundred forty-seven thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 1.28347968 × 10⁸

Factors of 128347968

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 167

Divisors of 128347968

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 29 32 37 42 48 56 58 64 74 84 87 89 96 111 112 116 148 168 174 178 192 203 222 224 232 259 267 296 336 348 356 406 444 448 464 518 534 592 609 623 672 696 712 777 812 888 928 1036 1068 1073 1184 1218 1246 1344 1392 1424 1554 1624 1776 1856 1869 2072 2136 2146 2368 2436 2492 2581 2784 2848 3108 3219 3248 3293 3552 3738 4144 4272 4292 4872 4984 5162 5568 5696 6216 6438 6496 6586 7104 7476 7511 7743 8288 8544 8584 9744 9879 9968 10324 12432 12876 12992 13172 14952 15022 15486 16576 17088 17168 18067 19488 19758 19936 20648 22533 23051 24864 25752 26344 29904 30044 30972 34336 36134 38976 39516 39872 41296 45066 46102 49728 51504 52688 54201 59808 60088 61944 68672 69153 72268 79032 82592 90132 92204 95497 103008 105376 108402 119616 120176 123888 138306 144536 158064 165184 180264 184408 190994 206016 210752 216804 240352 247776 276612 286491 289072 316128 360528 368816 381988 433608 480704 495552 553224 572982 578144 632256 668479 721056 737632 763976 867216 1106448 1145964 1156288 1336958 1442112 1475264 1527952 1734432 2005437 2212896 2291928 2673916 3055904 3468864 4010874 4425792 4583856 5347832 6111808 8021748 9167712 10695664 16043496 18335424 21391328 32086992 42782656 64173984 128347968
• Sum of all divisors σ(n): 416966400
• Sum of proper divisors (its aliquot sum) s(n): 288618432
• 128347968 is an abundant number, because the sum of its proper divisors (288618432) is greater than itself. Its abundance is 160270464

Bases of 128347968

• Binary: 111101001100110111101000000₂
• Hexadecimal: 0x7A66F40
• Base-36: 24EXXC

Squares and roots of 128347968

• 128347968 squared (128347968²) is 16473200889729024
• 128347968 cubed (128347968³) is 2114301860652512301023232
• The square root of 128347968 is 11329.0762200631
• The cube root of 128347968 is 504.4246861373

Scales and comparisons

• 128,347,968 seconds is equal to 4 years, 4 weeks, 1 day, 12 hours, 12 minutes, 48 seconds.
• To count from 1 to 128,347,968 would take you about six 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 128347968 cubic inches would be around 42 feet tall.

Recreational maths with 128347968

• 128347968 backwards is 869743821
• 128347968 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 128347968's digits is 48
• More coming soon!