155443378272

Names of 155443378272

• Cardinal: 155443378272 can be written as One hundred fifty-five billion, four hundred forty-three million, three hundred seventy-eight thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 1.55443378272 × 10¹¹

Factors of 155443378272

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 15797

Divisors of 155443378272

• 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 1223 1248 1456 2184 2446 2912 3669 4368 4892 7338 8561 8736 9784 14549 14676 15899 17122 19568 25683 29098 29352 31798 34244 39136 43647 47697 51366 58196 58704 63596 68488 87294 95394 101843 102732 111293 116392 117408 127192 136976 174588 189137 190788 203686 205464 222586 232784 254384 273952 305529 333879 349176 378274 381576 407372 410928 445172 465568 508768 567411 611058 667758 698352 756548 763152 814744 821856 890344 1134822 1222116 1323959 1335516 1396704 1513096 1526304 1629488 1780688 2269644 2444232 2647918 2671032 3026192 3258976 3561376 3971877 4539288 4888464 5295836 5342064 6052384 7943754 9078576 9776928 10591672 10684128 15887508 17793427 18157152 21183344 31775016 35586854 42366688 53380281 63550032 71173708 106760562 124553989 127100064 142347416 213521124 231314551 249107978 284694832 373661967 427042248 462629102 498215956 569389664 693943653 747323934 854084496 925258204 996431912 1387887306 1494647868 1619201857 1708168992 1850516408 1992863824 2775774612 2989295736 3238403714 3701032816 3985727648 4857605571 5551549224 5978591472 6476807428 7402065632 9715211142 11103098448 11957182944 12953614856 19430422284 22206196896 25907229712 38860844568 51814459424 77721689136 155443378272
• Sum of all divisors σ(n): 502646860800
• Sum of proper divisors (its aliquot sum) s(n): 347203482528
• 155443378272 is an abundant number, because the sum of its proper divisors (347203482528) is greater than itself. Its abundance is 191760104256

Bases of 155443378272

• Binary: 10010000110001001001011011100001100000₂
• Hexadecimal: 0x243125B860
• Base-36: 1ZEQZ2AO

Squares and roots of 155443378272

• 155443378272 squared (155443378272²) is 24162643848612081705984
• 155443378272 cubed (155443378272³) is 3755922987811421718812641997979648
• The square root of 155443378272 is 394263.0825628999
• The cube root of 155443378272 is 5376.8023898447

Scales and comparisons

• 155,443,378,272 seconds is equal to 4,942 years, 32 weeks, 1 day, 4 hours, 11 minutes, 12 seconds.
• To count from 1 to 155,443,378,272 would take you about nine thousand, eight hundred eighty-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 155443378272 cubic inches would be around 448.1 feet tall.

Recreational maths with 155443378272

• 155443378272 backwards is 272873344551
• The number of decimal digits it has is: 12
• The sum of 155443378272's digits is 51
• More coming soon!