28431640640

Names of 28431640640

• Cardinal: 28431640640 can be written as Twenty-eight billion, four hundred thirty-one million, six hundred forty thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.843164064 × 10¹⁰

Factors of 28431640640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1150

Divisors of 28431640640

• Number of divisors d(n): 224
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 37 40 52 64 65 74 80 104 130 148 160 169 185 208 260 296 320 338 370 416 481 520 592 676 740 832 845 962 1040 1093 1184 1352 1480 1690 1924 2080 2186 2197 2368 2405 2704 2960 3380 3848 4160 4372 4394 4810 5408 5465 5920 6253 6760 7696 8744 8788 9620 10816 10930 10985 11840 12506 13520 14209 15392 17488 17576 19240 21860 21970 25012 27040 28418 30784 31265 34976 35152 38480 40441 43720 43940 50024 54080 56836 62530 69952 70304 71045 76960 80882 81289 87440 87880 100048 113672 125060 140608 142090 153920 161764 162578 174880 175760 184717 200096 202205 227344 250120 284180 323528 325156 349760 351520 369434 400192 404410 406445 454688 500240 525733 568360 647056 650312 703040 738868 808820 812890 909376 923585 1000480 1051466 1136720 1294112 1300624 1477736 1617640 1625780 1847170 2000960 2102932 2273440 2401321 2588224 2601248 2628665 2955472 3235280 3251560 3694340 4205864 4546880 4802642 5202496 5257330 5910944 6470560 6503120 6834529 7388680 8411728 9605284 10514660 11821888 12006605 12941120 13006240 13669058 14777360 16823456 19210568 21029320 24013210 26012480 27338116 29554720 33646912 34172645 38421136 42058640 48026420 54676232 59109440 68345290 76842272 84117280 88848877 96052840 109352464 136690580 153684544 168234560 177697754 192105680 218704928 273381160 355395508 384211360 437409856 444244385 546762320 710791016 768422720 888488770 1093524640 1421582032 1776977540 2187049280 2843164064 3553955080 5686328128 7107910160 14215820320 28431640640
• Sum of all divisors σ(n): 75393316320
• Sum of proper divisors (its aliquot sum) s(n): 46961675680
• 28431640640 is an abundant number, because the sum of its proper divisors (46961675680) is greater than itself. Its abundance is 18530035040

Bases of 28431640640

• Binary: 11010011110101010000110100001000000₂
• Hexadecimal: 0x69EA86840
• Base-36: D27GQBK

Squares and roots of 28431640640

• 28431640640 squared (28431640640²) is 808358189482099609600
• 28431640640 cubed (28431640640³) is 22982949551756083812831494144000
• The square root of 28431640640 is 168616.8456590267
• The cube root of 28431640640 is 3052.1132229439

Scales and comparisons

• 28,431,640,640 seconds is equal to 904 years, 1 week, 6 days, 21 hours, 57 minutes, 20 seconds.
• To count from 1 to 28,431,640,640 would take you about one thousand, eight hundred eight 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 28431640640 cubic inches would be around 254.3 feet tall.

Recreational maths with 28431640640

• 28431640640 backwards is 04604613482
• The number of decimal digits it has is: 11
• The sum of 28431640640's digits is 38
• More coming soon!