18213315132987

Names of 18213315132987

• Cardinal: 18213315132987 can be written as Eighteen trillion, two hundred thirteen billion, three hundred fifteen million, one hundred thirty-two thousand, nine hundred eighty-seven.

Scientific notation

• Scientific notation: 1.8213315132987 × 10¹³

Factors of 18213315132987

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 45559

Divisors of 18213315132987

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 9 13 17 37 39 43 51 111 117 127 129 153 221 333 381 387 481 559 629 663 731 1143 1443 1591 1651 1677 1887 1989 2159 2193 4329 4699 4773 4953 5031 5461 5661 6477 6579 8177 9503 14097 14319 14859 16383 19431 20683 24531 27047 28067 28509 42291 45319 49149 61087 62049 70993 73593 79883 81141 84201 85527 92837 135957 183261 186147 202057 212979 239649 243423 252603 278511 351611 407871 549783 589147 606171 638937 718947 770423 835533 1038479 1054833 1206881 1676803 1767441 1818513 1948717 2311269 2626741 3115437 3164499 3434969 3620643 5030409 5302323 5755513 5846151 6933807 7880223 9346311 10015499 10304907 10861929 15091227 17266539 17538453 21798439 23640669 25333321 28505651 30046497 30914721 33128189 44654597 51799617 65395317 72102529 74821669 75999963 85516953 90139491 97843721 99384567 133963791 196185951 212953981 216307587 224465007 227999889 247487059 256550859 293531163 298153701 370573463 401891373 430666457 638861943 648922761 673395021 742461177 880593489 937332877 1111720389 1225742993 1271968373 1291999371 1916585829 2227383531 2768401753 2811998631 3217331767 3335161167 3620217677 3677228979 3815905119 3875998113 4207280003 8305205259 8435995893 9157021183 9651995301 10860653031 11031686937 11447715357 12621840009 15934658909 24915615777 27471063549 28955985903 32581959093 37865520027 47062829801 47803976727 54694640039 82413190647 119041275379 141188489403 143411930181 155669360111 164083920117 357123826137 423565468209 467008080333 492251760351 1071371478411 1401024240999 2023701681443 6071105044329 18213315132987
• Sum of all divisors σ(n): 31774595973120
• Sum of proper divisors (its aliquot sum) s(n): 13561280840133
• 18213315132987 is a deficient number, because the sum of its proper divisors (13561280840133) is less than itself. Its deficiency is 4652034292854

Bases of 18213315132987

• Binary: 100001001000010011110001011011011111000111011₂
• Hexadecimal: 0x10909E2DBE3B
• Base-36: 6GF2XKQWR

Squares and roots of 18213315132987

• 18213315132987 squared (18213315132987²) is 331724848133493261495542169
• 18213315132987 cubed (18213315132987³) is 6041809196497567200724548986287901428803
• The square root of 18213315132987 is 4267706.0738746993
• The cube root of 18213315132987 is 26310.5342837567

Scales and comparisons

• 18,213,315,132,987 seconds is equal to 579,127 years, 4 weeks, 2 days, 11 hours, 36 minutes, 27 seconds.
• To count from 1 to 18,213,315,132,987 would take you about one million, four hundred forty-seven thousand, eight hundred seventeen 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 18213315132987 cubic inches would be around 2192.5 feet tall.

Recreational maths with 18213315132987

• 18213315132987 backwards is 78923151331281
• The number of decimal digits it has is: 14
• The sum of 18213315132987's digits is 54
• More coming soon!