12987897472

Names of 12987897472

• Cardinal: 12987897472 can be written as Twelve billion, nine hundred eighty-seven million, eight hundred ninety-seven thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.2987897472 × 10¹⁰

Factors of 12987897472

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 178

Divisors of 12987897472

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 8 11 16 22 32 37 44 61 64 67 74 88 122 128 134 148 176 244 268 296 352 407 488 536 592 671 704 737 814 976 1072 1184 1342 1408 1474 1628 1952 2144 2257 2368 2479 2684 2948 3256 3721 3904 4087 4288 4514 4736 4958 5368 5896 6512 7442 7808 8174 8576 9028 9916 10736 11792 13024 14884 16348 18056 19832 21472 23584 24827 26048 27269 29768 32696 36112 39664 40931 42944 44957 47168 49654 52096 54538 59536 65392 72224 79328 81862 85888 89914 94336 99308 109076 119072 130784 137677 144448 151219 158656 163724 179828 198616 218152 238144 249307 261568 275354 288896 302438 317312 327448 359656 397232 436304 476288 498614 523136 550708 604876 654896 719312 794464 872608 997228 1101416 1209752 1309792 1438624 1514447 1588928 1663409 1745216 1994456 2202832 2419504 2619584 2742377 2877248 3028894 3177856 3326818 3490432 3988912 4405664 4839008 5239168 5484754 5754496 6057788 6653636 7977824 8811328 9224359 9678016 10969508 12115576 13307272 15955648 17622656 18448718 19356032 21939016 24231152 26614544 31911296 36897436 43878032 48462304 53229088 73794872 87756064 96924608 101467949 106458176 147589744 175512128 193849216 202935898 212916352 295179488 351024256 405871796 590358976 811743592 1180717952 1623487184 3246974368 6493948736 12987897472
• Sum of all divisors σ(n): 29912332320
• Sum of proper divisors (its aliquot sum) s(n): 16924434848
• 12987897472 is an abundant number, because the sum of its proper divisors (16924434848) is greater than itself. Its abundance is 3936537376

Bases of 12987897472

• Binary: 1100000110001000111001011010000000₂
• Hexadecimal: 0x306239680
• Base-36: 5YSNPTS

Squares and roots of 12987897472

• 12987897472 squared (12987897472²) is 168685480743183990784
• 12987897472 cubed (12987897472³) is 2190869728907504035134384898048
• The square root of 12987897472 is 113964.4570556979
• The cube root of 12987897472 is 2350.6047920977

Scales and comparisons

• 12,987,897,472 seconds is equal to 412 years, 50 weeks, 4 days, 21 hours, 17 minutes, 52 seconds.
• To count from 1 to 12,987,897,472 would take you about eight hundred twenty-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 12987897472 cubic inches would be around 195.9 feet tall.

Recreational maths with 12987897472

• 12987897472 backwards is 27479878921
• 12987897472 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12987897472's digits is 64
• More coming soon!