7142821875

Names of 7142821875

• Cardinal: 7142821875 can be written as Seven billion, one hundred forty-two million, eight hundred twenty-one thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 7.142821875 × 10⁹

Factors of 7142821875

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 159

Divisors of 7142821875

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 5 7 9 15 21 25 35 45 49 63 71 73 75 105 125 147 175 213 219 225 245 315 355 365 375 441 497 511 525 625 639 657 735 875 1065 1095 1125 1225 1491 1533 1575 1775 1825 1875 2205 2485 2555 2625 3125 3195 3285 3479 3577 3675 4375 4473 4599 5183 5325 5475 5625 6125 7455 7665 7875 8875 9125 9375 10437 10731 11025 12425 12775 13125 15549 15975 16425 17395 17885 18375 21875 22365 22995 25915 26625 27375 28125 30625 31311 32193 36281 37275 38325 39375 44375 45625 46647 52185 53655 55125 62125 63875 65625 77745 79875 82125 86975 89425 91875 108843 111825 114975 129575 133125 136875 153125 156555 160965 181405 186375 191625 196875 221875 228125 233235 253967 260925 268275 275625 310625 319375 326529 388725 399375 410625 434875 447125 459375 544215 559125 574875 647875 665625 684375 761901 782775 804825 907025 931875 958125 1166175 1269835 1304625 1341375 1378125 1553125 1596875 1632645 1943625 1996875 2053125 2174375 2235625 2285703 2721075 2795625 2874375 3239375 3809505 3913875 4024125 4535125 4659375 4790625 5830875 6349175 6523125 6706875 8163225 9718125 10871875 11178125 11428515 13605375 13978125 14371875 16196875 19047525 19569375 20120625 22675625 29154375 31745875 32615625 33534375 40816125 48590625 57142575 68026875 95237625 97846875 100603125 113378125 145771875 158729375 204080625 285712875 340134375 476188125 793646875 1020403125 1428564375 2380940625 7142821875
• Sum of all divisors σ(n): 15421075488
• Sum of proper divisors (its aliquot sum) s(n): 8278253613
• 7142821875 is an abundant number, because the sum of its proper divisors (8278253613) is greater than itself. Its abundance is 1135431738

Bases of 7142821875

• Binary: 110101001101111101100111111110011₂
• Hexadecimal: 0x1A9BECFF3
• Base-36: 3A4NGMR

Squares and roots of 7142821875

• 7142821875 squared (7142821875²) is 51019904337978515625
• 7142821875 cubed (7142821875³) is 364426088765720334686279296875
• The square root of 7142821875 is 84515.2168251375
• The cube root of 7142821875 is 1925.8536159095

Scales and comparisons

• 7,142,821,875 seconds is equal to 227 years, 6 weeks, 1 day, 13 hours, 11 minutes, 15 seconds.
• To count from 1 to 7,142,821,875 would take you about four hundred fifty-four 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 7142821875 cubic inches would be around 160.5 feet tall.

Recreational maths with 7142821875

• 7142821875 backwards is 5781282417
• 7142821875 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 7142821875's digits is 45
• More coming soon!