989389905920

Names of 989389905920

• Cardinal: 989389905920 can be written as Nine hundred eighty-nine billion, three hundred eighty-nine million, nine hundred five thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 9.8938990592 × 10¹¹

Factors of 989389905920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 45380

Divisors of 989389905920

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 41 52 64 65 80 82 104 128 130 160 164 205 208 256 260 320 328 410 416 512 520 533 640 656 820 832 1024 1040 1066 1280 1312 1640 1664 2048 2080 2132 2560 2624 2665 3280 3328 4096 4160 4264 5120 5248 5330 6560 6656 8192 8320 8528 10240 10496 10660 13120 13312 16640 17056 20480 20992 21320 26240 26624 33280 34112 40960 41984 42640 45319 52480 53248 66560 68224 83968 85280 90638 104960 106496 133120 136448 167936 170560 181276 209920 226595 266240 272896 335872 341120 362552 419840 453190 532480 545792 589147 682240 725104 839680 906380 1091584 1178294 1364480 1450208 1679360 1812760 1858079 2183168 2356588 2728960 2900416 2945735 3625520 3716158 4366336 4713176 5457920 5800832 5891470 7251040 7432316 9290395 9426352 10915840 11601664 11782940 14502080 14864632 18580790 18852704 21831680 23203328 23565880 24155027 29004160 29729264 37161580 37705408 46406656 47131760 48310054 58008320 59458528 74323160 75410816 92813312 94263520 96620108 116016640 118917056 120775135 148646320 150821632 185626624 188527040 193240216 232033280 237834112 241550270 297292640 301643264 371253248 377054080 386480432 464066560 475668224 483100540 594585280 603286528 754108160 772960864 928133120 951336448 966201080 1189170560 1206573056 1508216320 1545921728 1856266240 1902672896 1932402160 2378341120 2413146112 3016432640 3091843456 3805345792 3864804320 4756682240 4826292224 6032865280 6183686912 7610691584 7729608640 9513364480 12065730560 12367373824 15221383168 15459217280 19026728960 24131461120 24734747648 30918434560 38053457920 49469495296 61836869120 76106915840 98938990592 123673738240 197877981184 247347476480 494694952960 989389905920
• Sum of all divisors σ(n): 2619460831680
• Sum of proper divisors (its aliquot sum) s(n): 1630070925760
• 989389905920 is an abundant number, because the sum of its proper divisors (1630070925760) is greater than itself. Its abundance is 640681019840

Bases of 989389905920

• Binary: 1110011001011100001110111110000000000000₂
• Hexadecimal: 0xE65C3BE000
• Base-36: CMIP7DA8

Squares and roots of 989389905920

• 989389905920 squared (989389905920²) is 978892385936386451046400
• 989389905920 cubed (989389905920³) is 968506245627405721905560381554688000
• The square root of 989389905920 is 994680.8060478497
• The cube root of 989389905920 is 9964.5071948507

Scales and comparisons

• 989,389,905,920 seconds is equal to 31,459 years, 28 weeks, 1 hour, 25 minutes, 20 seconds.
• To count from 1 to 989,389,905,920 would take you about sixty-two thousand, nine hundred nineteen 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 989389905920 cubic inches would be around 830.4 feet tall.

Recreational maths with 989389905920

• 989389905920 backwards is 029509983989
• The number of decimal digits it has is: 12
• The sum of 989389905920's digits is 71
• More coming soon!