7638966972

Names of 7638966972

• Cardinal: 7638966972 can be written as Seven billion, six hundred thirty-eight million, nine hundred sixty-six thousand, nine hundred seventy-two.

Scientific notation

• Scientific notation: 7.638966972 × 10⁹

Factors of 7638966972

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 179394

Divisors of 7638966972

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 169 182 234 252 273 338 364 468 507 546 676 819 1014 1092 1183 1521 1638 2028 2366 3042 3276 3549 4732 6084 7098 10647 14196 21294 42588 179369 358738 538107 717476 1076214 1255583 1614321 2152428 2331797 2511166 3228642 3766749 4663594 5022332 6457284 6995391 7533498 9327188 11300247 13990782 15066996 16322579 20986173 22600494 27981564 30313361 32645158 41972346 45200988 48967737 60626722 65290316 83944692 90940083 97935474 121253444 146903211 181880166 195870948 212193527 272820249 293806422 363760332 424387054 545640498 587612844 636580581 848774108 1091280996 1273161162 1909741743 2546322324 3819483486 7638966972
• Sum of all divisors σ(n): 23896388880
• Sum of proper divisors (its aliquot sum) s(n): 16257421908
• 7638966972 is an abundant number, because the sum of its proper divisors (16257421908) is greater than itself. Its abundance is 8618454936

Bases of 7638966972

• Binary: 111000111010100010110001010111100₂
• Hexadecimal: 0x1C75162BC
• Base-36: 3IC1KN0

Squares and roots of 7638966972

• 7638966972 squared (7638966972²) is 58353816399306848784
• 7638966972 cubed (7638966972³) is 445762876164456981554374362048
• The square root of 7638966972 is 87401.1840423229
• The cube root of 7638966972 is 1969.4496278331

Scales and comparisons

• 7,638,966,972 seconds is equal to 242 years, 46 weeks, 3 days, 23 hours, 16 minutes, 12 seconds.
• To count from 1 to 7,638,966,972 would take you about four hundred eighty-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 7638966972 cubic inches would be around 164.1 feet tall.

Recreational maths with 7638966972

• 7638966972 backwards is 2796698367
• 7638966972 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 7638966972's digits is 63
• More coming soon!