18900061908

Names of 18900061908

• Cardinal: 18900061908 can be written as Eighteen billion, nine hundred million, sixty-one thousand, nine hundred eight.

Scientific notation

• Scientific notation: 1.8900061908 × 10¹⁰

Factors of 18900061908

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1724

Divisors of 18900061908

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 37 39 42 52 74 78 84 91 111 148 156 182 222 259 273 359 364 444 481 518 546 718 777 962 1036 1077 1092 1303 1436 1443 1554 1924 2154 2513 2606 2886 3108 3367 3909 4308 4667 5026 5212 5772 6734 7539 7818 9121 9334 10052 10101 13283 13468 14001 15078 15636 16939 18242 18668 20202 26566 27363 28002 30156 32669 33878 36484 39849 40404 48211 50817 53132 54726 56004 65338 67756 79698 92981 96422 98007 101634 109452 118573 130676 144633 159396 172679 185962 192844 196014 203268 237146 278943 289266 337477 345358 355719 371924 392028 467777 474292 518037 557886 578532 626743 674954 690716 711438 935554 1012431 1036074 1115772 1208753 1253486 1349908 1403331 1422876 1871108 1880229 2024862 2072148 2417506 2506972 2806662 3274439 3626259 3760458 4049724 4387201 4835012 5613324 6081101 6548878 7252518 7520916 8774402 9823317 12162202 13097756 13161603 14505036 17307749 17548804 18243303 19646634 24324404 26323206 34615498 36486606 39293268 42567707 51923247 52646412 69230996 72973212 85135414 103846494 121154243 127703121 170270828 207692988 225000737 242308486 255406242 363462729 450001474 484616972 510812484 675002211 726925458 900002948 1350004422 1453850916 1575005159 2700008844 3150010318 4725015477 6300020636 9450030954 18900061908
• Sum of all divisors σ(n): 55942225920
• Sum of proper divisors (its aliquot sum) s(n): 37042164012
• 18900061908 is an abundant number, because the sum of its proper divisors (37042164012) is greater than itself. Its abundance is 18142102104

Bases of 18900061908

• Binary: 10001100110100010000000111011010100₂
• Hexadecimal: 0x466880ED4
• Base-36: 8OKLX3O

Squares and roots of 18900061908

• 18900061908 squared (18900061908²) is 357212340126232600464
• 18900061908 cubed (18900061908³) is 6751335342687348683577429525312
• The square root of 18900061908 is 137477.4960057099
• The cube root of 18900061908 is 2663.7149136035

Scales and comparisons

• 18,900,061,908 seconds is equal to 600 years, 50 weeks, 17 hours, 11 minutes, 48 seconds.
• To count from 1 to 18,900,061,908 would take you about one thousand, two hundred 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 18900061908 cubic inches would be around 222 feet tall.

Recreational maths with 18900061908

• 18900061908 backwards is 80916000981
• 18900061908 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18900061908's digits is 42
• More coming soon!