842136400

Names of 842136400

• Cardinal: 842136400 can be written as Eight hundred forty-two million, one hundred thirty-six thousand, four hundred.

Scientific notation

• Scientific notation: 8.421364 × 10⁸

Factors of 842136400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 81

Divisors of 842136400

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 20 25 28 35 40 50 56 67 70 80 100 112 134 140 175 200 268 280 335 350 400 469 536 560 670 700 938 1072 1340 1400 1675 1876 2345 2680 2800 3350 3752 4489 4690 5360 6700 7504 8978 9380 11725 13400 17956 18760 22445 23450 26800 31423 35912 37520 44890 46900 62846 71824 89780 93800 112225 125692 157115 179560 187600 224450 251384 300763 314230 359120 448900 502768 601526 628460 785575 897800 1203052 1256920 1503815 1571150 1795600 2105341 2406104 2513840 3007630 3142300 4210682 4812208 6015260 6284600 7519075 8421364 10526705 12030520 12569200 15038150 16842728 21053410 24061040 30076300 33685456 42106820 52633525 60152600 84213640 105267050 120305200 168427280 210534100 421068200 842136400
• Sum of all divisors σ(n): 2347300160
• Sum of proper divisors (its aliquot sum) s(n): 1505163760
• 842136400 is an abundant number, because the sum of its proper divisors (1505163760) is greater than itself. Its abundance is 663027360

Bases of 842136400

• Binary: 110010001100011111101101010000₂
• Hexadecimal: 0x3231FB50
• Base-36: DXDWLS

Squares and roots of 842136400

• 842136400 squared (842136400²) is 709193716204960000
• 842136400 cubed (842136400³) is 597237843067466676544000000
• The square root of 842136400 is 29019.5864891285
• The cube root of 842136400 is 944.3380300967

Scales and comparisons

• 842,136,400 seconds is equal to 26 years, 40 weeks, 2 days, 22 hours, 46 minutes, 40 seconds.
• To count from 1 to 842,136,400 would take you about forty 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 842136400 cubic inches would be around 78.7 feet tall.

Recreational maths with 842136400

• 842136400 backwards is 004631248
• 842136400 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 842136400's digits is 28
• More coming soon!