1989131520

Names of 1989131520

• Cardinal: 1989131520 can be written as One billion, nine hundred eighty-nine million, one hundred thirty-one thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.98913152 × 10⁹

Factors of 1989131520

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 172

Divisors of 1989131520

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 79 80 83 96 120 128 158 160 166 192 237 240 249 256 316 320 332 384 395 415 474 480 498 632 640 664 768 790 830 948 960 996 1185 1245 1264 1280 1328 1580 1660 1896 1920 1992 2370 2490 2528 2656 3160 3320 3792 3840 3984 4740 4980 5056 5312 6241 6320 6557 6640 7584 7968 9480 9960 10112 10624 12482 12640 13114 13280 15168 15936 18723 18960 19671 19920 20224 21248 24964 25280 26228 26560 30336 31205 31872 32785 37446 37920 39342 39840 49928 50560 52456 53120 60672 62410 63744 65570 74892 75840 78684 79680 93615 98355 99856 101120 104912 106240 124820 131140 149784 151680 157368 159360 187230 196710 199712 209824 249640 262280 299568 303360 314736 318720 374460 393420 399424 419648 499280 518003 524560 599136 629472 748920 786840 798848 839296 998560 1036006 1049120 1198272 1258944 1497840 1554009 1573680 1597696 1678592 1997120 2072012 2098240 2396544 2517888 2590015 2995680 3108018 3147360 3994240 4144024 4196480 4793088 5035776 5180030 5991360 6216036 6294720 7770045 7988480 8288048 8392960 10360060 11982720 12432072 12589440 15540090 16576096 20720120 23965440 24864144 25178880 31080180 33152192 41440240 49728288 62160360 66304384 82880480 99456576 124320720 132608768 165760960 198913152 248641440 331521920 397826304 497282880 663043840 994565760 1989131520
• Sum of all divisors σ(n): 6511742496
• Sum of proper divisors (its aliquot sum) s(n): 4522610976
• 1989131520 is an abundant number, because the sum of its proper divisors (4522610976) is greater than itself. Its abundance is 2533479456

Bases of 1989131520

• Binary: 1110110100011111011110100000000₂
• Hexadecimal: 0x768FBD00
• Base-36: WW9ZPC

Squares and roots of 1989131520

• 1989131520 squared (1989131520²) is 3956644203857510400
• 1989131520 cubed (1989131520³) is 7870285699318279525367808000
• The square root of 1989131520 is 44599.6807163459
• The cube root of 1989131520 is 1257.6346655037

Scales and comparisons

• 1,989,131,520 seconds is equal to 63 years, 12 weeks, 6 days, 8 hours, 32 minutes.
• To count from 1 to 1,989,131,520 would take you about one hundred twenty-six 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 1989131520 cubic inches would be around 104.8 feet tall.

Recreational maths with 1989131520

• 1989131520 backwards is 0251319891
• The number of decimal digits it has is: 10
• The sum of 1989131520's digits is 39
• More coming soon!