21208679424

Names of 21208679424

• Cardinal: 21208679424 can be written as Twenty-one billion, two hundred eight million, six hundred seventy-nine thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1208679424 × 10¹⁰

Factors of 21208679424

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 83

Divisors of 21208679424

• Number of divisors d(n): 297
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 37 41 48 64 72 74 82 96 111 123 128 144 148 164 192 222 246 256 288 296 328 333 369 384 444 492 512 576 592 656 666 738 768 888 984 1024 1152 1184 1312 1332 1369 1476 1517 1536 1681 1776 1968 2304 2368 2624 2664 2738 2952 3034 3072 3362 3552 3936 4107 4551 4608 4736 5043 5248 5328 5476 5904 6068 6724 7104 7872 8214 9102 9216 9472 10086 10496 10656 10952 11808 12136 12321 13448 13653 14208 15129 15744 16428 18204 18944 20172 20992 21312 21904 23616 24272 24642 26896 27306 28416 30258 31488 32856 36408 37888 40344 41984 42624 43808 47232 48544 49284 53792 54612 56129 56832 60516 62197 62976 65712 72816 80688 85248 87616 94464 97088 98568 107584 109224 112258 113664 121032 124394 125952 131424 145632 161376 168387 170496 175232 186591 188928 194176 197136 215168 218448 224516 242064 248788 262848 291264 322752 336774 340992 350464 373182 377856 388352 394272 430336 436896 449032 484128 497576 505161 525696 559773 582528 645504 673548 700928 746364 776704 788544 860672 873792 898064 968256 995152 1010322 1051392 1119546 1165056 1291008 1347096 1401856 1492728 1553408 1577088 1721344 1747584 1796128 1936512 1990304 2020644 2102784 2239092 2301289 2330112 2582016 2694192 2985456 3154176 3495168 3592256 3873024 3980608 4041288 4205568 4478184 4602578 4660224 5164032 5388384 5970912 6308352 6903867 6990336 7184512 7746048 7961216 8082576 8956368 9205156 10776768 11941824 12616704 13807734 13980672 14369024 15492096 15922432 16165152 17912736 18410312 20711601 21553536 23883648 27615468 28738048 31844864 32330304 35825472 36820624 41423202 43107072 47767296 55230936 57476096 63689728 64660608 71650944 73641248 82846404 86214144 95534592 110461872 129321216 143301888 147282496 165692808 172428288 191069184 220923744 258642432 286603776 294564992 331385616 441847488 517284864 573207552 589129984 662771232 883694976 1178259968 1325542464 1767389952 2356519936 2651084928 3534779904 5302169856 7069559808 10604339712 21208679424
• Sum of all divisors σ(n): 64512009471
• Sum of proper divisors (its aliquot sum) s(n): 43303330047
• 21208679424 is an abundant number, because the sum of its proper divisors (43303330047) is greater than itself. Its abundance is 22094650623

Bases of 21208679424

• Binary: 10011110000001000101100010000000000₂
• Hexadecimal: 0x4F022C400
• Base-36: 9QR3LS0

Squares and roots of 21208679424

• 21208679424 squared (21208679424²) is 449808082910000971776
• 21208679424 cubed (21208679424³) is 9539835432762223653925655937024
• 21208679424 is a perfect square number. Its square root is 145632
• The cube root of 21208679424 is 2768.0326546761

Scales and comparisons

• 21,208,679,424 seconds is equal to 674 years, 19 weeks, 1 day, 19 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,208,679,424 would take you about one thousand, three hundred forty-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 21208679424 cubic inches would be around 230.7 feet tall.

Recreational maths with 21208679424

• 21208679424 backwards is 42497680212
• The number of decimal digits it has is: 11
• The sum of 21208679424's digits is 45
• More coming soon!