398640136068

Names of 398640136068

• Cardinal: 398640136068 can be written as Three hundred ninety-eight billion, six hundred forty million, one hundred thirty-six thousand and sixty-eight.

Scientific notation

• Scientific notation: 3.98640136068 × 10¹¹

Factors of 398640136068

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3827

Divisors of 398640136068

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 31 36 41 54 62 82 93 108 123 124 164 186 246 279 369 372 492 558 738 837 1093 1107 1116 1271 1476 1674 2186 2214 2542 2657 3279 3348 3813 4372 4428 5084 5314 6558 7626 7971 9837 10628 11439 13116 15252 15942 19674 22878 23913 29511 31884 33883 34317 39348 44813 45756 47826 59022 67766 68634 71739 82367 89626 95652 101649 108937 118044 134439 135532 137268 143478 164734 179252 203298 217874 247101 268878 286956 304947 326811 329468 403317 406596 435748 494202 537756 609894 653622 741303 806634 914841 980433 988404 1209951 1219788 1307244 1389203 1482606 1613268 1829682 1960866 2223909 2419902 2778406 2904101 2941299 2965212 3377047 3659364 3921732 4167609 4447818 4839804 5556812 5808202 5882598 6754094 8335218 8712303 8895636 10131141 11616404 11765196 12502827 13508188 16670436 17424606 20262282 25005654 26136909 30393423 34849212 37508481 40524564 50011308 52273818 60786846 75016962 78410727 90027131 91180269 104547636 119068141 121573692 150033924 156821454 180054262 182360538 238136282 270081393 313642908 357204423 360108524 364721076 476272564 540162786 714408846 810244179 1071613269 1080325572 1428817692 1620488358 2143226538 2430732537 3214839807 3240976716 3691112371 4286453076 4861465074 6429679614 7382224742 9722930148 11073337113 12859359228 14764449484 22146674226 33220011339 44293348452 66440022678 99660034017 132880045356 199320068034 398640136068
• Sum of all divisors σ(n): 1094282864640
• Sum of proper divisors (its aliquot sum) s(n): 695642728572
• 398640136068 is an abundant number, because the sum of its proper divisors (695642728572) is greater than itself. Its abundance is 297002592504

Bases of 398640136068

• Binary: 101110011010000110011011011111110000100₂
• Hexadecimal: 0x5CD0CDBF84
• Base-36: 534S1LL0

Squares and roots of 398640136068

• 398640136068 squared (398640136068²) is 158913958084313554500624
• 398640136068 cubed (398640136068³) is 63349481873835203982505485150906432
• The square root of 398640136068 is 631379.5499285671
• The cube root of 398640136068 is 7359.7038814633

Scales and comparisons

• 398,640,136,068 seconds is equal to 12,675 years, 27 weeks, 1 day, 11 hours, 7 minutes, 48 seconds.
• To count from 1 to 398,640,136,068 would take you about twenty-five thousand, three hundred fifty-one 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 398640136068 cubic inches would be around 613.3 feet tall.

Recreational maths with 398640136068

• 398640136068 backwards is 860631046893
• 398640136068 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 398640136068's digits is 54
• More coming soon!