18993904272

Names of 18993904272

• Cardinal: 18993904272 can be written as Eighteen billion, nine hundred ninety-three million, nine hundred four thousand, two hundred seventy-two.

Scientific notation

• Scientific notation: 1.8993904272 × 10¹⁰

Factors of 18993904272

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 134

Divisors of 18993904272

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 36 42 43 48 54 56 63 72 79 84 86 108 112 126 129 144 158 168 172 189 216 237 252 258 301 316 336 344 378 387 432 474 504 516 553 602 632 688 711 756 774 903 948 1008 1032 1106 1161 1204 1264 1422 1512 1548 1659 1806 1849 1896 2064 2133 2212 2322 2408 2709 2844 3024 3096 3318 3397 3612 3698 3792 4266 4424 4644 4816 4977 5418 5547 5688 6192 6636 6794 7224 7396 8127 8532 8848 9288 9954 10191 10836 11094 11376 12943 13272 13588 14448 14792 14931 16254 16641 17064 18576 19908 20382 21672 22188 23779 25886 26544 27176 29584 29862 30573 32508 33282 34128 38829 39816 40764 43344 44376 47558 49923 51772 54352 59724 61146 65016 66564 71337 77658 79507 79632 81528 88752 91719 95116 99846 103544 116487 119448 122292 130032 133128 142674 146071 155316 159014 163056 183438 190232 199692 207088 214011 232974 238521 238896 244584 266256 285348 292142 310632 318028 349461 366876 380464 399384 428022 438213 465948 477042 489168 556549 570696 584284 621264 636056 642033 698922 715563 733752 798768 856044 876426 931896 954084 1022497 1113098 1141392 1168568 1272112 1284066 1314639 1397844 1431126 1467504 1669647 1712088 1752852 1863792 1908168 2044994 2146689 2226196 2337136 2568132 2629278 2795688 2862252 3067491 3339294 3424176 3505704 3816336 3943917 4089988 4293378 4452392 5008941 5136264 5258556 5591376 5724504 6134982 6281053 6678588 7011408 7887834 8179976 8586756 8904784 9202473 10017882 10272528 10517112 11449008 12269964 12562106 13357176 15026823 15775668 16359952 17173512 18404946 18843159 20035764 21034224 24539928 25124212 26714352 27607419 30053646 31551336 34347024 36809892 37686318 40071528 43967371 49079856 50248424 55214838 56529477 60107292 63102672 73619784 75372636 80143056 87934742 100496848 110429676 113058954 120214584 131902113 147239568 150745272 169588431 175869484 220859352 226117908 240429168 263804226 301490544 339176862 351738968 395706339 441718704 452235816 527608452 678353724 703477936 791412678 904471632 1055216904 1187119017 1356707448 1582825356 2110433808 2374238034 2713414896 3165650712 4748476068 6331301424 9496952136 18993904272
• Sum of all divisors σ(n): 64599040000
• Sum of proper divisors (its aliquot sum) s(n): 45605135728
• 18993904272 is an abundant number, because the sum of its proper divisors (45605135728) is greater than itself. Its abundance is 26611231456

Bases of 18993904272

• Binary: 10001101100000111111111101010010000₂
• Hexadecimal: 0x46C1FFA90
• Base-36: 8Q4HAC0

Squares and roots of 18993904272

• 18993904272 squared (18993904272²) is 360768399493899849984
• 18993904272 cubed (18993904272³) is 6852400444349786998551256731648
• The square root of 18993904272 is 137818.3742176637
• The cube root of 18993904272 is 2668.1162523979

Scales and comparisons

• 18,993,904,272 seconds is equal to 603 years, 49 weeks, 1 day, 20 hours, 31 minutes, 12 seconds.
• To count from 1 to 18,993,904,272 would take you about one thousand, two hundred 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 18993904272 cubic inches would be around 222.3 feet tall.

Recreational maths with 18993904272

• 18993904272 backwards is 27240939981
• 18993904272 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18993904272's digits is 54
• More coming soon!