155263129749

Names of 155263129749

• Cardinal: 155263129749 can be written as One hundred fifty-five billion, two hundred sixty-three million, one hundred twenty-nine thousand, seven hundred forty-nine.

Scientific notation

• Scientific notation: 1.55263129749 × 10¹¹

Factors of 155263129749

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 7892

Divisors of 155263129749

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 13 19 21 27 39 49 57 61 63 91 117 133 147 171 183 189 247 273 351 399 427 441 513 549 637 741 793 819 931 1159 1197 1281 1323 1647 1729 1911 2223 2379 2457 2793 2989 3477 3591 3843 5187 5551 5733 6669 7137 7789 8113 8379 8967 10431 11529 12103 15067 15561 16653 17199 21411 23367 24339 25137 26901 31293 36309 38857 45201 46683 49959 54523 56791 70101 73017 80703 101257 105469 108927 116571 135603 147991 149877 163569 170373 210303 219051 303771 316407 326781 349713 381661 406809 443973 475129 490707 511119 708799 738283 911313 949221 1035937 1049139 1144983 1331919 1425387 1472121 1533357 1923883 2126397 2214849 2733939 2847663 3107811 3325903 3434949 3995757 4276161 4961593 5771649 6176677 6379191 6644547 7251559 9027451 9323433 9977709 10304847 12828483 13467181 14884779 17314947 18530031 19137573 19933641 21754677 23281321 27082353 27970299 29933127 40401543 43236739 44654337 51944841 55590093 63192157 65264031 69843963 81247059 89799381 94270267 117356863 121204629 129710217 133963011 166770279 189576471 195792093 209531889 243741177 282810801 302657173 352070589 363613887 389130651 442345099 568729413 628595667 821498041 848432403 907971519 1056211767 1167391953 1327035297 1706188239 2464494123 2545297209 2723914557 3168635301 3981105891 5750486287 7393482369 8171743671 11943317673 17251458861 22180447107 51754376583 155263129749
• Sum of all divisors σ(n): 308334432000
• Sum of proper divisors (its aliquot sum) s(n): 153071302251
• 155263129749 is a deficient number, because the sum of its proper divisors (153071302251) is less than itself. Its deficiency is 2191827498

Bases of 155263129749

• Binary: 10010000100110011001110101100010010101₂
• Hexadecimal: 0x2426675895
• Base-36: 1ZBRNPN9

Squares and roots of 155263129749

• 155263129749 squared (155263129749²) is 24106639459454808803001
• 155263129749 cubed (155263129749³) is 3742872290205695203982331643576749
• The square root of 155263129749 is 394034.4271113883
• The cube root of 155263129749 is 5374.7233143921

Scales and comparisons

• 155,263,129,749 seconds is equal to 4,936 years, 46 weeks, 23 hours, 9 minutes, 9 seconds.
• To count from 1 to 155,263,129,749 would take you about nine thousand, eight hundred seventy-three 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 155263129749 cubic inches would be around 447.9 feet tall.

Recreational maths with 155263129749

• 155263129749 backwards is 947921362551
• The number of decimal digits it has is: 12
• The sum of 155263129749's digits is 54
• More coming soon!