9978911397

Names of 9978911397

• Cardinal: 9978911397 can be written as Nine billion, nine hundred seventy-eight million, nine hundred eleven thousand, three hundred ninety-seven.

Scientific notation

• Scientific notation: 9.978911397 × 10⁹

Factors of 9978911397

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 71

Divisors of 9978911397

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 7 9 13 19 21 27 29 39 49 57 63 81 87 91 117 133 147 169 171 189 203 243 247 261 273 351 377 399 441 507 513 551 567 609 637 729 741 783 819 931 1053 1131 1183 1197 1323 1421 1521 1539 1653 1701 1729 1827 1911 2187 2223 2349 2457 2639 2793 3159 3211 3393 3549 3591 3857 3969 4263 4563 4617 4901 4959 5103 5187 5481 5733 6669 7047 7163 7371 7917 8281 8379 9477 9633 10179 10647 10773 11571 11907 12103 12789 13689 13851 14703 14877 15309 15561 16443 17199 18473 20007 21141 21489 22113 22477 23751 24843 25137 26999 28431 28899 30537 31941 32319 34307 34713 35721 36309 38367 41067 41553 44109 44631 46683 49329 50141 51597 55419 60021 63423 64467 66339 67431 71253 74529 75411 80997 86697 91611 93119 95823 96957 102921 104139 107163 108927 115101 123201 132327 133893 140049 147987 150423 154791 157339 166257 180063 193401 199017 202293 213759 223587 226233 240149 242991 260091 274833 279357 287469 290871 308763 312417 326781 345303 350987 369603 396981 401679 420147 443961 451269 464373 472017 498771 540189 580203 606879 641277 651833 670761 678699 720447 728973 780273 824499 838071 862407 926289 937251 980343 1035909 1052961 1190943 1205037 1260441 1353807 1393119 1416051 1496313 1740609 1820637 1923831 1955499 2012283 2036097 2161341 2186919 2340819 2514213 2587221 2778867 2811753 2941029 3107727 3158883 3572829 3781323 4061421 4248153 4488939 4562831 5221827 5461911 5771493 5866497 6036849 6484023 6560757 7022457 7542639 8336601 8435259 8823087 9476649 10718487 12184263 12744459 13466817 13688493 15665481 16385733 17599491 18110547 19452069 19682271 22627917 25009803 26469261 28429947 36552789 38233377 40400451 41065479 49157199 52798473 58356207 59046813 67883751 75029409 85289841 109658367 114700131 123196437 158395419 175068621 203651253 255869523 344100393 369589311 475186257 525205863 767608569 1108767933 1425558771 3326303799 9978911397
• Sum of all divisors σ(n): 20528208000
• Sum of proper divisors (its aliquot sum) s(n): 10549296603
• 9978911397 is an abundant number, because the sum of its proper divisors (10549296603) is greater than itself. Its abundance is 570385206

Bases of 9978911397

• Binary: 1001010010110010100001101010100101₂
• Hexadecimal: 0x252CA1AA5
• Base-36: 4L16PB9

Squares and roots of 9978911397

• 9978911397 squared (9978911397²) is 99578672669176491609
• 9978911397 cubed (9978911397³) is 993686751596577702721524967773
• The square root of 9978911397 is 99894.5013351585
• The cube root of 9978911397 is 2152.9191569207

Scales and comparisons

• 9,978,911,397 seconds is equal to 317 years, 15 weeks, 3 days, 15 hours, 49 minutes, 57 seconds.
• To count from 1 to 9,978,911,397 would take you about six hundred thirty-four 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 9978911397 cubic inches would be around 179.4 feet tall.

Recreational maths with 9978911397

• 9978911397 backwards is 7931198799
• 9978911397 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 9978911397's digits is 63
• More coming soon!