161020918404472

Names of 161020918404472

• Cardinal: 161020918404472 can be written as One hundred sixty-one trillion, twenty billion, nine hundred eighteen million, four hundred four thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.61020918404472 × 10¹⁴

Factors of 161020918404472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 891

Divisors of 161020918404472

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 7 8 14 28 49 56 98 149 196 298 343 392 596 686 733 1043 1192 1372 1466 2086 2744 2932 4172 5131 5864 7301 8344 10262 14602 20524 29204 35917 41048 51107 58408 71834 102214 109217 143668 204428 218434 251419 287336 408856 436868 502838 537289 764519 873736 1005676 1074578 1529038 2011352 2149156 3058076 3761023 4298312 5351633 6116152 7522046 10703266 15044092 21406532 26327161 30088184 37461431 42813064 52654322 74922862 80056061 105308644 149845724 160112122 184290127 210617288 299691448 320224244 368580254 393832837 560392427 640448488 737160508 787665674 1120784854 1474321016 1575331348 2241569708 2756829859 3150662696 3922746989 4483139416 5513659718 7845493978 11027319436 15690987956 19297809013 22054638872 27459228923 31381975912 38595618026 54918457846 58681092713 77191236052 109836915692 117362185426 135084663091 154382472104 219673831384 234724370852 270169326182 410767648991 469448741704 540338652364 821535297982 1080677304728 1643070595964 2875373542937 3286141191928 5750747085874 11501494171748 20127614800559 23002988343496 40255229601118 80510459202236 161020918404472
• Sum of all divisors σ(n): 354933774000000
• Sum of proper divisors (its aliquot sum) s(n): 193912855595528
• 161020918404472 is an abundant number, because the sum of its proper divisors (193912855595528) is greater than itself. Its abundance is 32891937191056

Bases of 161020918404472

• Binary: 100100100111001010011010101001001001010101111000₂
• Hexadecimal: 0x92729AA49578
• Base-36: 1L2RZLDPX4

Squares and roots of 161020918404472

• 161020918404472 squared (161020918404472²) is 25927736163819629654189598784
• 161020918404472 cubed (161020918404472³) is 4174907889247078454990084987740739111362048
• The square root of 161020918404472 is 12689401.8142886467
• The cube root of 161020918404472 is 54403.5742322129

Scales and comparisons

• 161,020,918,404,472 seconds is equal to 5,119,967 years, 7 weeks, 2 hours, 7 minutes, 52 seconds.
• To count from 1 to 161,020,918,404,472 would take you about twelve million, seven hundred ninety-nine thousand, nine 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 161020918404472 cubic inches would be around 4533.6 feet tall.

Recreational maths with 161020918404472

• 161020918404472 backwards is 274404819020161
• 161020918404472 is a Harshad number.
• The number of decimal digits it has is: 15
• The sum of 161020918404472's digits is 49
• More coming soon!