155172031168

Names of 155172031168

• Cardinal: 155172031168 can be written as One hundred fifty-five billion, one hundred seventy-two million, thirty-one thousand, one hundred sixty-eight.

Scientific notation

• Scientific notation: 1.55172031168 × 10¹¹

Factors of 155172031168

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 107780

Divisors of 155172031168

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 7 8 11 14 16 22 28 32 44 56 64 77 88 112 154 176 224 293 308 352 448 586 616 704 1172 1232 2051 2344 2464 3223 4102 4688 4928 6446 8204 9376 12892 16408 18752 22561 25784 32816 45122 51568 65632 90244 103136 107467 131264 180488 206272 214934 360976 429868 721952 752269 859736 1182137 1443904 1504538 1719472 2364274 3009076 3438944 4728548 6018152 6877888 8274959 9457096 12036304 16549918 18914192 24072608 31487831 33099836 37828384 48145216 62975662 66199672 75656768 125951324 132399344 220414817 251902648 264798688 346366141 440829634 503805296 529597376 692732282 881659268 1007610592 1385464564 1763318536 2015221184 2424562987 2770929128 3526637072 4849125974 5541858256 7053274144 9698251948 11083716512 14106548288 19396503896 22167433024 38793007792 77586015584 155172031168
• Sum of all divisors σ(n): 385213457664
• Sum of proper divisors (its aliquot sum) s(n): 230041426496
• 155172031168 is an abundant number, because the sum of its proper divisors (230041426496) is greater than itself. Its abundance is 74869395328

Bases of 155172031168

• Binary: 10010000100000111110010100101011000000₂
• Hexadecimal: 0x2420F94AC0
• Base-36: 1ZA9F5J4

Squares and roots of 155172031168

• 155172031168 squared (155172031168²) is 24078359256802763444224
• 155172031168 cubed (155172031168³) is 3736287913070899725195657557573632
• The square root of 155172031168 is 393918.8129145395
• The cube root of 155172031168 is 5373.6719262089

Scales and comparisons

• 155,172,031,168 seconds is equal to 4,933 years, 51 weeks, 3 days, 13 hours, 59 minutes, 28 seconds.
• To count from 1 to 155,172,031,168 would take you about nine thousand, eight hundred sixty-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 155172031168 cubic inches would be around 447.8 feet tall.

Recreational maths with 155172031168

• 155172031168 backwards is 861130271551
• The number of decimal digits it has is: 12
• The sum of 155172031168's digits is 40
• More coming soon!