18957684438

Names of 18957684438

• Cardinal: 18957684438 can be written as Eighteen billion, nine hundred fifty-seven million, six hundred eighty-four thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8957684438 × 10¹⁰

Factors of 18957684438

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 367

Divisors of 18957684438

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 6 7 9 11 14 18 21 22 33 42 63 66 67 77 99 121 126 134 154 198 201 231 242 277 363 402 462 469 554 603 693 726 737 831 847 938 1089 1206 1386 1407 1474 1662 1694 1939 2178 2211 2493 2541 2814 3047 3878 4221 4422 4489 4986 5082 5159 5817 6094 6633 7623 8107 8442 8978 9141 10318 11634 13266 13467 15246 15477 16214 17451 18282 18559 21329 24321 26934 27423 30954 31423 33517 34902 37118 40401 42658 46431 48642 49379 54846 55677 56749 62846 63987 67034 72963 80802 92862 94269 98758 100551 111354 113498 127974 129913 145926 148137 167031 170247 188538 191961 201102 204149 234619 259826 282807 296274 301653 334062 340494 345653 383922 389739 408298 444411 469238 510741 543169 565614 603306 612447 691306 703857 779478 888822 1021482 1036959 1086338 1169217 1224894 1243453 1407714 1429043 1629507 1837341 2073918 2111571 2245639 2338434 2486906 2858086 3110877 3259014 3674682 3730359 3802183 4223142 4287129 4491278 4888521 6221754 6736917 7460718 7604366 8574258 8704171 9777042 11191077 11406549 12861387 13473834 13677983 15719473 17408342 20210751 22382154 22813098 25722774 26112513 27355966 31438946 34219647 40421502 41033949 47158419 52225026 68439294 78337539 82067898 94316838 95745881 123101847 141475257 150457813 156675078 191491762 246203694 282950514 287237643 300915626 451373439 574475286 861712929 902746878 1053204691 1354120317 1723425858 2106409382 2708240634 3159614073 6319228146 9478842219 18957684438
• Sum of all divisors σ(n): 52569041616
• Sum of proper divisors (its aliquot sum) s(n): 33611357178
• 18957684438 is an abundant number, because the sum of its proper divisors (33611357178) is greater than itself. Its abundance is 14653672740

Bases of 18957684438

• Binary: 10001101001111101110100111011010110₂
• Hexadecimal: 0x469F74ED6
• Base-36: 8PIWYXI

Squares and roots of 18957684438

• 18957684438 squared (18957684438²) is 359393799250787375844
• 18957684438 cubed (18957684438³) is 6813274235170347894284655915672
• The square root of 18957684438 is 137686.9072860597
• The cube root of 18957684438 is 2666.4192128473

Scales and comparisons

• 18,957,684,438 seconds is equal to 602 years, 41 weeks, 2 days, 15 hours, 27 minutes, 18 seconds.
• To count from 1 to 18,957,684,438 would take you about one thousand, two hundred 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 18957684438 cubic inches would be around 222.2 feet tall.

Recreational maths with 18957684438

• 18957684438 backwards is 83448675981
• 18957684438 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18957684438's digits is 63
• More coming soon!