161388654328810272

Names of 161388654328810272

• Cardinal: 161388654328810272 can be written as One hundred sixty-one quadrillion, three hundred eighty-eight trillion, six hundred fifty-four billion, three hundred twenty-eight million, eight hundred ten thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 1.61388654328810272 × 10¹⁷

Factors of 161388654328810272

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 394629727

Divisors of 161388654328810272

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 32 39 42 48 52 56 78 84 91 96 104 112 156 168 182 208 224 273 312 336 364 416 546 624 672 728 1092 1248 1456 2184 2912 4368 8736 46819 93638 140457 187276 280914 327733 374552 561828 608647 655466 749104 983199 1123656 1217294 1310932 1498208 1825941 1966398 2247312 2434588 2621864 3651882 3932796 4260529 4494624 4869176 5243728 7303764 7865592 8521058 9738352 10487456 12781587 14607528 15731184 17042116 19476704 25563174 29215056 31462368 34084232 51126348 58430112 68168464 102252696 136336928 204505392 394582883 409010784 789165766 1183748649 1578331532 2367497298 2762080181 3156663064 4734994596 5129577479 5524160362 6313326128 8286240543 9469989192 10259154958 11048320724 12626652256 15388732437 16572481086 18939978384 20518309916 22096641448 30777464874 33144962172 35907042353 37879956768 41036619832 44193282896 61554929748 66289924344 71814084706 82073239664 88386565792 107721127059 123109859496 132579848688 143628169412 164146479328 215442254118 246219718992 265159697376 287256338824 430884508236 492439437984 574512677648 861769016472 1149025355296 1723538032944 3447076065888 18473975999177 36947951998354 55421927997531 73895903996708 110843855995062 129317831994239 147791807993416 221687711990124 240161687989301 258635663988478 295583615986832 387953495982717 443375423980248 480323375978602 517271327976956 591167231973664 720485063967903 775906991965434 886750847960496 960646751957204 1034542655953912 1440970127935806 1551813983930868 1681131815925107 1773501695920992 1921293503914408 2069085311907824 2881940255871612 3103627967861736 3362263631850214 3842587007828816 4138170623815648 5043395447775321 5763880511743224 6207255935723472 6724527263700428 7685174015657632 10086790895550642 11527761023486448 12414511871446944 13449054527400856 20173581791101284 23055522046972896 26898109054801712 40347163582202568 53796218109603424 80694327164405136 161388654328810272
• Sum of all divisors σ(n): 521420636629509120
• Sum of proper divisors (its aliquot sum) s(n): 360031982300698848
• 161388654328810272 is an abundant number, because the sum of its proper divisors (360031982300698848) is greater than itself. Its abundance is 198643327971888576

Bases of 161388654328810272

• Binary: 1000111101010111100010000001000100000011000000101100100000₂
• Hexadecimal: 0x23D5E20440C0B20
• Base-36: 1853I49RSV1C

Squares and roots of 161388654328810272

• 161388654328810272 squared (161388654328810272²) is 26046297746064210547023970972713984
• 161388654328810272 cubed (161388654328810272³) is 4203576943484826984233162380453601290795725657243648
• The square root of 161388654328810272 is 401732067.8372717011
• The cube root of 161388654328810272 is 544449.5796108163

Scales and comparisons

• 161,388,654,328,810,272 seconds is equal to 5,131,659,999 years, 40 weeks, 18 hours, 51 minutes, 12 seconds.
• To count from 1 to 161,388,654,328,810,272 would take you about fifteen billion, three hundred ninety-four million, nine hundred seventy-nine thousand, nine hundred ninety-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 161388654328810272 cubic inches would be around 45370.8 feet tall.

Recreational maths with 161388654328810272

• 161388654328810272 backwards is 272018823456883161
• The number of decimal digits it has is: 18
• The sum of 161388654328810272's digits is 75
• More coming soon!