18121961100213942016

Names of 18121961100213942016

• Cardinal: 18121961100213942016 can be written as Eighteen quintillion, one hundred twenty-one quadrillion, nine hundred sixty-one trillion, one hundred billion, two hundred thirteen million, nine hundred forty-two thousand and sixteen.

Scientific notation

• Scientific notation: 1.8121961100213942016 × 10¹⁹

Factors of 18121961100213942016

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 1330

Divisors of 18121961100213942016

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 8 16 32 64 128 256 499 829 998 1658 1996 3316 3992 6632 7984 13264 15968 26528 31936 53056 63872 106112 127744 212224 249001 413671 498002 687241 827342 996004 1374482 1654684 1992008 2748964 3309368 3984016 5497928 6618736 7968032 10995856 13237472 15936064 21991712 26474944 31872128 43983424 52949888 63744256 87966848 105899776 124251499 175933696 206421829 248502998 342933259 412843658 497005996 569722789 685866518 825687316 994011992 1139445578 1371733036 1651374632 1988023984 2278891156 2743466072 3302749264 3976047968 4557782312 5486932144 6605498528 7952095936 9115564624 10973864288 13210997056 15904191872 18231129248 21947728576 26421994112 31808383744 36462258496 43895457152 52843988224 72924516992 87790914304 103004492671 145849033984 171123696241 206008985342 284291671711 342247392482 412017970684 568583343422 684494784964 824035941368 1137166686844 1368989569928 1648071882736 2274333373688 2737979139856 3296143765472 4548666747376 5475958279712 6592287530944 9097333494752 10951916559424 13184575061888 18194666989504 21903833118848 26369150123776 36389333979008 43807666237696 72778667958016 85390724424259 141861544183789 170781448848518 283723088367578 341562897697036 567446176735156 683125795394072 1134892353470312 1366251590788144 2269784706940624 2732503181576288 4539569413881248 5465006363152576 9079138827762496 10930012726305152 18158277655524992 21860025452610304 36316555311049984 70788910547710711 141577821095421422 283155642190842844 566311284381685688 1132622568763371376 2265245137526742752 4530490275053485504 9060980550106971008 18121961100213942016
• Sum of all divisors σ(n): 36289545187719460000
• Sum of proper divisors (its aliquot sum) s(n): 18167584087505517984
• 18121961100213942016 is an abundant number, because the sum of its proper divisors (18167584087505517984) is greater than itself. Its abundance is 45622987291575968

Bases of 18121961100213942016

• Binary: 1111101101111110001000111001101100111011101100101111011100000000₂
• Hexadecimal: 0xFB7E239B3BB2F700
• Base-36: 3TOK32NX5DON4

Squares and roots of 18121961100213942016

• 18121961100213942016 squared (18121961100213942016²) is 328405474117667307783260926386210144256
• 18121961100213942016 cubed (18121961100213942016³) is 5951351227057683503588151304165307144277713834461779460096
• The square root of 18121961100213942016 is 4256989675.8406570061
• The cube root of 18121961100213942016 is 2626647.1222749483

Scales and comparisons

• 18,121,961,100,213,942,016 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,121,961,100,213,942,016 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 18121961100213942016 cubic inches would be around 218887.3 feet tall.

Recreational maths with 18121961100213942016

• 18121961100213942016 backwards is 61024931200116912181
• The number of decimal digits it has is: 20
• The sum of 18121961100213942016's digits is 58
• More coming soon!