997931257920

Names of 997931257920

• Cardinal: 997931257920 can be written as Nine hundred ninety-seven billion, nine hundred thirty-one million, two hundred fifty-seven thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 9.9793125792 × 10¹¹

Factors of 997931257920

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 497

Divisors of 997931257920

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 135 144 160 180 192 216 240 270 288 320 360 432 480 487 540 576 720 864 960 974 1080 1440 1461 1728 1948 2160 2435 2880 2922 3896 4320 4383 4870 5844 7305 7792 8640 8766 9740 11688 13149 14610 15584 17532 19480 21915 23376 26298 29220 31168 35064 38960 43830 46752 52596 58440 65745 70128 77920 87660 93504 105192 116880 131490 140256 155840 175320 210384 233760 237169 262980 280512 350640 420768 467520 474338 525960 701280 711507 841536 948676 1051920 1185845 1402560 1423014 1897352 2103840 2134521 2371690 2846028 3557535 3794704 4207680 4269042 4743380 5692056 6403563 7115070 7589408 8538084 9486760 10672605 11384112 12807126 14230140 15178816 17076168 18973520 21345210 22768224 25614252 28460280 32017815 34152336 37947040 42690420 45536448 51228504 56920560 64035630 68304672 75894080 85380840 102457008 113841120 115501303 128071260 136609344 170761680 204914016 227682240 231002606 256142520 341523360 346503909 409828032 462005212 512285040 577506515 683046720 693007818 924010424 1024570080 1039511727 1155013030 1386015636 1732519545 1848020848 2049140160 2079023454 2310026060 2772031272 3118535181 3465039090 3696041696 4158046908 4620052120 5197558635 5544062544 6237070362 6930078180 7392083392 8316093816 9240104240 10395117270 11088125088 12474140724 13860156360 15592675905 16632187632 18480208480 20790234540 22176250176 24948281448 27720312720 31185351810 33264375264 36960416960 41580469080 49896562896 55440625440 62370703620 66528750528 83160938160 99793125792 110881250880 124741407240 166321876320 199586251584 249482814480 332643752640 498965628960 997931257920
• Sum of all divisors σ(n): 3527723500800
• Sum of proper divisors (its aliquot sum) s(n): 2529792242880
• 997931257920 is an abundant number, because the sum of its proper divisors (2529792242880) is greater than itself. Its abundance is 1531860984960

Bases of 997931257920

• Binary: 1110100001011001010101101001000001000000₂
• Hexadecimal: 0xE859569040
• Base-36: CQFYI6O0

Squares and roots of 997931257920

• 997931257920 squared (997931257920²) is 995866795533793562726400
• 997931257920 cubed (997931257920³) is 993806603987798047921154776793088000
• The square root of 997931257920 is 998965.0934442103
• The cube root of 997931257920 is 9993.0994323787

Scales and comparisons

• 997,931,257,920 seconds is equal to 31,731 years, 6 weeks, 4 days, 7 hours, 12 minutes.
• To count from 1 to 997,931,257,920 would take you about sixty-three thousand, four hundred sixty-two 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 997931257920 cubic inches would be around 832.8 feet tall.

Recreational maths with 997931257920

• 997931257920 backwards is 029752139799
• The number of decimal digits it has is: 12
• The sum of 997931257920's digits is 63
• More coming soon!