38989909920

Names of 38989909920

• Cardinal: 38989909920 can be written as Thirty-eight billion, nine hundred eighty-nine million, nine hundred nine thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 3.898990992 × 10¹⁰

Factors of 38989909920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 16159

Divisors of 38989909920

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 312 390 397 416 480 520 624 780 794 1040 1191 1248 1560 1588 1985 2080 2382 3120 3176 3970 4764 5161 5955 6240 6352 7940 9528 10322 11910 12704 15483 15739 15880 19056 20644 23820 25805 30966 31478 31760 38112 41288 47217 47640 51610 61932 62956 63520 77415 78695 82576 94434 95280 103220 123864 125912 154830 157390 165152 188868 190560 204607 206440 236085 247728 251824 309660 314780 377736 409214 412880 472170 495456 503648 613821 619320 629560 755472 818428 825760 944340 1023035 1227642 1238640 1259120 1510944 1636856 1888680 2046070 2455284 2477280 2518240 3069105 3273712 3777360 4092140 4910568 6138210 6248383 6547424 7554720 8184280 9821136 12276420 12496766 16368560 18745149 19642272 24552840 24993532 31241915 32737120 37490298 49105680 49987064 62483830 74980596 81228979 93725745 98211360 99974128 124967660 149961192 162457958 187451490 199948256 243686937 249935320 299922384 324915916 374902980 406144895 487373874 499870640 599844768 649831832 749805960 812289790 974747748 999741280 1218434685 1299663664 1499611920 1624579580 1949495496 2436869370 2599327328 2999223840 3249159160 3898990992 4873738740 6498318320 7797981984 9747477480 12996636640 19494954960 38989909920
• Sum of all divisors σ(n): 132607359360
• Sum of proper divisors (its aliquot sum) s(n): 93617449440
• 38989909920 is an abundant number, because the sum of its proper divisors (93617449440) is greater than itself. Its abundance is 54627539520

Bases of 38989909920

• Binary: 100100010011111110101100111110100000₂
• Hexadecimal: 0x913FACFA0
• Base-36: HWTL31C

Squares and roots of 38989909920

• 38989909920 squared (38989909920²) is 1520213075569714406400
• 38989909920 cubed (38989909920³) is 59272970875669317385662271488000
• The square root of 38989909920 is 197458.6283756675
• The cube root of 38989909920 is 3390.9189597141

Scales and comparisons

• 38,989,909,920 seconds is equal to 1,239 years, 39 weeks, 3 days, 2 hours, 32 minutes.
• To count from 1 to 38,989,909,920 would take you about two thousand, four hundred seventy-nine 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 38989909920 cubic inches would be around 282.6 feet tall.

Recreational maths with 38989909920

• 38989909920 backwards is 02990998983
• The number of decimal digits it has is: 11
• The sum of 38989909920's digits is 66
• More coming soon!