21013953480

Names of 21013953480

• Cardinal: 21013953480 can be written as Twenty-one billion, thirteen million, nine hundred fifty-three thousand, four hundred eighty.

Scientific notation

• Scientific notation: 2.101395348 × 10¹⁰

Factors of 21013953480

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 186

Divisors of 21013953480

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 30 36 39 40 45 52 60 65 72 78 90 104 117 120 130 156 163 169 180 195 234 260 312 326 338 360 390 468 489 507 520 585 652 676 780 815 845 936 978 1014 1170 1304 1352 1467 1521 1560 1630 1690 1956 2028 2119 2197 2340 2445 2535 2934 3042 3260 3380 3912 4056 4238 4394 4680 4890 5070 5868 6084 6357 6520 6591 6760 7335 7605 8476 8788 9780 10140 10595 10985 11736 12168 12714 13182 14670 15210 16952 17576 19071 19560 19773 20280 21190 21970 25428 26364 26569 27547 29340 30420 31785 32955 38142 39546 42380 43940 50856 52728 53138 55094 58680 60840 63570 65910 76284 79092 79707 82641 84760 87880 95355 98865 106276 110188 127140 131820 132845 137735 152568 158184 159414 165282 190710 197730 212552 220376 239121 247923 254280 263640 265690 275470 318828 330564 345397 358111 381420 395460 398535 413205 478242 495846 531380 550940 637656 661128 690794 716222 762840 790920 797070 826410 956484 991692 1036191 1062760 1074333 1101880 1195605 1239615 1381588 1432444 1594140 1652820 1726985 1790555 1912968 1983384 2072382 2148666 2391210 2479230 2763176 2864888 3108573 3188280 3222999 3305640 3453970 3581110 4144764 4297332 4490161 4782420 4958460 5180955 5371665 6217146 6445998 6907940 7162220 8289528 8594664 8980322 9564840 9916920 10361910 10743330 12434292 12891996 13470483 13815880 14324440 15542865 16114995 17960644 20723820 21486660 22450805 24868584 25783992 26940966 31085730 32229990 35921288 40411449 41447640 42973320 44901610 53881932 58372093 62171460 64459980 67352415 80822898 89803220 107763864 116744186 124342920 128919960 134704830 161645796 175116279 179606440 202057245 233488372 269409660 291860465 323291592 350232558 404114490 466976744 525348837 538819320 583720930 700465116 808228980 875581395 1050697674 1167441860 1400930232 1616457960 1751162790 2101395348 2334883720 2626744185 3502325580 4202790696 5253488370 7004651160 10506976740 21013953480
• Sum of all divisors σ(n): 74440711800
• Sum of proper divisors (its aliquot sum) s(n): 53426758320
• 21013953480 is an abundant number, because the sum of its proper divisors (53426758320) is greater than itself. Its abundance is 32412804840

Bases of 21013953480

• Binary: 10011100100100001110111101111001000₂
• Hexadecimal: 0x4E4877BC8
• Base-36: 9NJ5YA0

Squares and roots of 21013953480

• 21013953480 squared (21013953480²) is 441586240859604110400
• 21013953480 cubed (21013953480³) is 9279472722831795987162384192000
• The square root of 21013953480 is 144961.9035471045
• The cube root of 21013953480 is 2759.5350981285

Scales and comparisons

• 21,013,953,480 seconds is equal to 668 years, 9 weeks, 2 days, 1 hour, 18 minutes.
• To count from 1 to 21,013,953,480 would take you about one thousand, three hundred thirty-six 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 21013953480 cubic inches would be around 230 feet tall.

Recreational maths with 21013953480

• 21013953480 backwards is 08435931012
• 21013953480 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21013953480's digits is 36
• More coming soon!