15438747948

Names of 15438747948

• Cardinal: 15438747948 can be written as Fifteen billion, four hundred thirty-eight million, seven hundred forty-seven thousand, nine hundred forty-eight.

Scientific notation

• Scientific notation: 1.5438747948 × 10¹⁰

Factors of 15438747948

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1510

Divisors of 15438747948

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 12 13 17 26 34 39 41 51 52 68 78 82 102 107 123 156 164 204 214 221 246 321 428 442 492 533 642 663 697 884 1066 1284 1326 1327 1391 1394 1599 1819 2091 2132 2652 2654 2782 2788 3198 3638 3981 4173 4182 4387 5308 5457 5564 6396 7276 7962 8346 8364 8774 9061 10914 13161 15924 16692 17251 17548 18122 21828 22559 23647 26322 27183 34502 36244 45118 47294 51753 52644 54366 54407 57031 67677 69004 70941 74579 90236 94588 103506 108732 108814 114062 135354 141882 141989 149158 163221 171093 207012 217628 223737 228124 270708 283764 283978 293267 298316 326442 342186 425967 447474 567956 586534 652884 684372 707291 851934 879801 894948 924919 969527 1173068 1414582 1703868 1759602 1845857 1849838 1939054 2121873 2413813 2774757 2829164 2908581 3519204 3691714 3699676 3878108 4243746 4827626 5537571 5549514 5817162 5821549 7241439 7383428 8487492 9655252 11075142 11099028 11634324 11643098 12023947 14482878 17464647 22150284 23286196 24047894 28965756 31379569 34929294 36071841 48095788 62759138 69858588 72143682 75680137 94138707 98966333 125518276 144287364 151360274 188277414 197932666 227040411 296898999 302720548 376554828 395865332 454080822 593797998 908161644 1187595996 1286562329 2573124658 3859686987 5146249316 7719373974 15438747948
• Sum of all divisors σ(n): 42503989248
• Sum of proper divisors (its aliquot sum) s(n): 27065241300
• 15438747948 is an abundant number, because the sum of its proper divisors (27065241300) is greater than itself. Its abundance is 11626493352

Bases of 15438747948

• Binary: 1110011000001110001001100100101100₂
• Hexadecimal: 0x39838992C
• Base-36: 73BTY5O

Squares and roots of 15438747948

• 15438747948 squared (15438747948²) is 238354938201874210704
• 15438747948 cubed (15438747948³) is 3679901813059852280260499635392
• The square root of 15438747948 is 124252.7583114355
• The cube root of 15438747948 is 2490.0268244397

Scales and comparisons

• 15,438,747,948 seconds is equal to 490 years, 47 weeks, 5 hours, 5 minutes, 48 seconds.
• To count from 1 to 15,438,747,948 would take you about nine hundred eighty-one 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 15438747948 cubic inches would be around 207.5 feet tall.

Recreational maths with 15438747948

• 15438747948 backwards is 84974783451
• The number of decimal digits it has is: 11
• The sum of 15438747948's digits is 60
• More coming soon!