18197880400

Names of 18197880400

• Cardinal: 18197880400 can be written as Eighteen billion, one hundred ninety-seven million, eight hundred eighty thousand, four hundred.

Scientific notation

• Scientific notation: 1.81978804 × 10¹⁰

Factors of 18197880400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6808

Divisors of 18197880400

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 31 35 40 50 56 62 70 80 100 112 124 140 155 175 200 217 248 280 310 350 400 434 496 560 620 700 775 868 961 1085 1240 1400 1550 1736 1922 2170 2480 2800 3100 3472 3844 4340 4805 5425 6200 6727 6763 7688 8680 9610 10850 12400 13454 13526 15376 17360 19220 21700 24025 26908 27052 33635 33815 38440 43400 47341 48050 53816 54104 67270 67630 76880 86800 94682 96100 107632 108208 134540 135260 168175 169075 189364 192200 209653 236705 269080 270520 336350 338150 378728 384400 419306 473410 538160 541040 672700 676300 757456 838612 946820 1048265 1183525 1345400 1352600 1467571 1677224 1893640 2096530 2367050 2690800 2705200 2935142 3354448 3787280 4193060 4734100 5241325 5870284 6499243 7337855 8386120 9468200 10482650 11740568 12998486 14675710 16772240 18936400 20965300 23481136 25996972 29351420 32496215 36689275 41930600 45494701 51993944 58702840 64992430 73378550 83861200 90989402 103987888 117405680 129984860 146757100 162481075 181978804 227473505 259969720 293514200 324962150 363957608 454947010 519939440 587028400 649924300 727915216 909894020 1137367525 1299848600 1819788040 2274735050 2599697200 3639576080 4549470100 9098940200 18197880400
• Sum of all divisors σ(n): 51637620576
• Sum of proper divisors (its aliquot sum) s(n): 33439740176
• 18197880400 is an abundant number, because the sum of its proper divisors (33439740176) is greater than itself. Its abundance is 15241859776

Bases of 18197880400

• Binary: 10000111100101011011001111001010000₂
• Hexadecimal: 0x43CAD9E50
• Base-36: 8CYJQDS

Squares and roots of 18197880400

• 18197880400 squared (18197880400²) is 331162851052704160000
• 18197880400 cubed (18197880400³) is 6026461956380124400262464000000
• The square root of 18197880400 is 134899.5196433257
• The cube root of 18197880400 is 2630.3099963741

Scales and comparisons

• 18,197,880,400 seconds is equal to 578 years, 33 weeks, 14 hours, 46 minutes, 40 seconds.
• To count from 1 to 18,197,880,400 would take you about one thousand, one hundred fifty-seven 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 18197880400 cubic inches would be around 219.2 feet tall.

Recreational maths with 18197880400

• 18197880400 backwards is 00408879181
• The number of decimal digits it has is: 11
• The sum of 18197880400's digits is 46
• More coming soon!