642067968

Names of 642067968

• Cardinal: 642067968 can be written as Six hundred forty-two million, sixty-seven thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 6.42067968 × 10⁸

Factors of 642067968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 456

Divisors of 642067968

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 12 16 17 24 32 34 48 51 64 67 68 96 102 128 134 136 192 201 204 256 268 272 367 384 402 408 512 536 544 734 768 804 816 1072 1088 1101 1139 1468 1536 1608 1632 2144 2176 2202 2278 2936 3216 3264 3417 4288 4352 4404 4556 5872 6239 6432 6528 6834 8576 8704 8808 9112 11744 12478 12864 13056 13668 17152 17616 18224 18717 23488 24589 24956 25728 26112 27336 34304 35232 36448 37434 46976 49178 49912 51456 54672 70464 72896 73767 74868 93952 98356 99824 102912 109344 140928 145792 147534 149736 187904 196712 199648 218688 281856 291584 295068 299472 393424 399296 418013 437376 563712 583168 590136 598944 786848 798592 836026 874752 1180272 1197888 1254039 1573696 1597184 1672052 1749504 2360544 2395776 2508078 3147392 3194368 3344104 4721088 4791552 5016156 6294784 6688208 9442176 9583104 10032312 12589568 13376416 18884352 20064624 26752832 37768704 40129248 53505664 80258496 107011328 160516992 214022656 321033984 642067968
• Sum of all divisors σ(n): 1843167744
• Sum of proper divisors (its aliquot sum) s(n): 1201099776
• 642067968 is an abundant number, because the sum of its proper divisors (1201099776) is greater than itself. Its abundance is 559031808

Bases of 642067968

• Binary: 100110010001010010111000000000₂
• Hexadecimal: 0x26452E00
• Base-36: AM9QTC

Squares and roots of 642067968

• 642067968 squared (642067968²) is 412251275531649024
• 642067968 cubed (642067968³) is 264693338786014008528863232
• The square root of 642067968 is 25339.0601246377
• The cube root of 642067968 is 862.7010659993

Scales and comparisons

• 642,067,968 seconds is equal to 20 years, 21 weeks, 4 days, 8 hours, 12 minutes, 48 seconds.
• To count from 1 to 642,067,968 would take you about thirty 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 642067968 cubic inches would be around 71.9 feet tall.

Recreational maths with 642067968

• 642067968 backwards is 869760246
• 642067968 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 642067968's digits is 48
• More coming soon!