4638991968

Names of 4638991968

• Cardinal: 4638991968 can be written as Four billion, six hundred thirty-eight million, nine hundred ninety-one thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 4.638991968 × 10⁹

Factors of 4638991968

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 65250

Divisors of 4638991968

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 19 24 26 32 36 38 39 48 52 57 72 76 78 96 104 114 117 144 152 156 171 208 228 234 247 288 304 312 342 416 456 468 494 608 624 684 741 912 936 988 1248 1368 1482 1824 1872 1976 2223 2736 2964 3744 3952 4446 5472 5928 7904 8892 11856 17784 23712 35568 65213 71136 130426 195639 260852 391278 521704 586917 782556 847769 1043408 1173834 1239047 1565112 1695538 2086816 2347668 2478094 2543307 3130224 3391076 3717141 4695336 4956188 5086614 6260448 6782152 7434282 7629921 9390672 9912376 10173228 11151423 13564304 14868564 15259842 16107611 18781344 19824752 20346456 22302846 27128608 29737128 30519684 32215222 39649504 40692912 44605692 48322833 59474256 61039368 64430444 81385824 89211384 96645666 118948512 122078736 128860888 144968499 178422768 193291332 244157472 257721776 289936998 356845536 386582664 515443552 579873996 773165328 1159747992 1546330656 2319495984 4638991968
• Sum of all divisors σ(n): 14954874480
• Sum of proper divisors (its aliquot sum) s(n): 10315882512
• 4638991968 is an abundant number, because the sum of its proper divisors (10315882512) is greater than itself. Its abundance is 5676890544

Bases of 4638991968

• Binary: 100010100100000010110011001100000₂
• Hexadecimal: 0x114816660
• Base-36: 24PXP40

Squares and roots of 4638991968

• 4638991968 squared (4638991968²) is 21520246479168513024
• 4638991968 cubed (4638991968³) is 99832250566243011236839391232
• The square root of 4638991968 is 68110.1458521415
• The cube root of 4638991968 is 1667.7893907957

Scales and comparisons

• 4,638,991,968 seconds is equal to 147 years, 26 weeks, 2 days, 52 minutes, 48 seconds.
• To count from 1 to 4,638,991,968 would take you about two hundred ninety-five 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 4638991968 cubic inches would be around 139 feet tall.

Recreational maths with 4638991968

• 4638991968 backwards is 8691998364
• The number of decimal digits it has is: 10
• The sum of 4638991968's digits is 63
• More coming soon!