7913542140

Names of 7913542140

• Cardinal: 7913542140 can be written as Seven billion, nine hundred thirteen million, five hundred forty-two thousand, one hundred forty.

Scientific notation

• Scientific notation: 7.91354214 × 10⁹

Factors of 7913542140

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 12725

Divisors of 7913542140

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 49 60 63 70 71 84 90 98 105 126 140 142 147 180 196 210 213 245 252 284 294 315 355 420 426 441 490 497 588 630 639 710 735 852 882 980 994 1065 1260 1278 1420 1470 1491 1764 1988 2130 2205 2485 2556 2940 2982 3195 3479 4260 4410 4473 4970 5964 6390 6958 7455 8820 8946 9940 10437 12637 12780 13916 14910 17395 17892 20874 22365 25274 29820 31311 34790 37911 41748 44730 50548 52185 62622 63185 69580 75822 88459 89460 104370 113733 125244 126370 151644 156555 176918 189555 208740 227466 252740 265377 313110 353836 379110 442295 454932 530754 568665 619213 626220 758220 796131 884590 897227 1061508 1137330 1238426 1326885 1592262 1769180 1794454 1857639 2274660 2476852 2653770 2691681 3096065 3184524 3588908 3715278 3980655 4486135 5307540 5383362 5572917 6192130 6280589 7430556 7961310 8075043 8972270 9288195 10766724 11145834 12384260 12561178 13458405 15922620 16150086 17944540 18576390 18841767 22291668 25122356 26916810 27864585 31402945 32300172 37152780 37683534 40375215 43964123 53833620 55729170 56525301 62805890 75367068 80750430 87928246 94208835 111458340 113050602 125611780 131892369 161500860 175856492 188417670 219820615 226101204 263784738 282626505 376835340 395677107 439641230 527569476 565253010 659461845 791354214 879282460 1130506020 1318923690 1582708428 1978385535 2637847380 3956771070 7913542140
• Sum of all divisors σ(n): 28319028192
• Sum of proper divisors (its aliquot sum) s(n): 20405486052
• 7913542140 is an abundant number, because the sum of its proper divisors (20405486052) is greater than itself. Its abundance is 12491943912

Bases of 7913542140

• Binary: 111010111101011110001000111111100₂
• Hexadecimal: 0x1D7AF11FC
• Base-36: 3MVIO70

Squares and roots of 7913542140

• 7913542140 squared (7913542140²) is 62624149201555779600
• 7913542140 cubed (7913542140³) is 495578843688159015425152344000
• The square root of 7913542140 is 88958.0920433887
• The cube root of 7913542140 is 1992.7690666415

Scales and comparisons

• 7,913,542,140 seconds is equal to 251 years, 32 weeks, 3 days, 22 hours, 9 minutes.
• To count from 1 to 7,913,542,140 would take you about five hundred three 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 7913542140 cubic inches would be around 166.1 feet tall.

Recreational maths with 7913542140

• 7913542140 backwards is 0412453197
• 7913542140 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 7913542140's digits is 36
• More coming soon!