21521205030400

Names of 21521205030400

• Cardinal: 21521205030400 can be written as Twenty-one trillion, five hundred twenty-one billion, two hundred five million, thirty thousand, four hundred.

Scientific notation

• Scientific notation: 2.15212050304 × 10¹³

Factors of 21521205030400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 193

Divisors of 21521205030400

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 25 32 38 40 50 64 76 80 95 100 128 152 160 167 190 200 256 304 320 334 361 380 400 475 512 608 640 668 722 760 800 835 950 1216 1280 1336 1444 1520 1600 1670 1805 1900 2432 2560 2672 2888 3040 3173 3200 3340 3610 3800 4175 4864 5344 5776 6080 6346 6400 6680 7220 7600 8350 9025 9728 10688 11552 12160 12692 12800 13360 14440 15200 15865 16700 18050 21376 23104 24320 25384 26720 27889 28880 30400 31730 33400 36100 42752 46208 48640 50768 53440 55778 57760 60287 60800 63460 66800 72200 79325 85504 92416 101536 106880 111556 115520 120574 121600 126920 133600 139445 144400 158650 184832 203072 213760 223112 231040 241148 243200 253840 267200 278890 288800 301435 317300 406144 427520 446224 462080 482296 507680 529891 534400 557780 577600 602870 634600 697225 812288 892448 924160 964592 1015360 1059782 1068800 1115560 1155200 1205740 1269200 1394450 1507175 1624576 1784896 1929184 2030720 2119564 2137600 2231120 2310400 2411480 2538400 2649455 2788900 3014350 3569792 3858368 4061440 4239128 4462240 4620800 4657463 4822960 5076800 5298910 5577800 6028700 7139584 7716736 8122880 8478256 8924480 9314926 9645920 10067929 10153600 10597820 11155600 12057400 13247275 14279168 15433472 16956512 17848960 18629852 19291840 20135858 20307200 21195640 22311200 23287315 24114800 26494550 30866944 33913024 35697920 37259704 38583680 40271716 40614400 42391280 44622400 46574630 48229600 50339645 52989100 67826048 71395840 74519408 77167360 80543432 84782560 88491797 89244800 93149260 96459200 100679290 105978200 116436575 135652096 149038816 154334720 161086864 169565120 176983594 178489600 186298520 192918400 201358580 211956400 232873150 251698225 271304192 298077632 322173728 339130240 353967188 356979200 372597040 385836800 402717160 423912800 442458985 465746300 503396450 596155264 644347456 678260480 707934376 745194080 771673600 805434320 847825600 884917970 931492600 1006792900 1192310528 1288694912 1356520960 1415868752 1490388160 1610868640 1681344143 1695651200 1769835940 1862985200 2013585800 2212294925 2384621056 2577389824 2831737504 2980776320 3221737280 3362688286 3391302400 3539671880 3725970400 4027171600 4424589850 5154779648 5663475008 5961552640 6443474560 6725376572 6782604800 7079343760 7451940800 8054343200 8406720715 8849179700 11326950016 11923105280 12886949120 13450753144 14158687520 14903881600 16108686400 16813441430 17698359400 22653900032 25773898240 26901506288 28317375040 29807763200 32217372800 33626882860 35396718800 42033603575 45307800064 53803012576 56634750080 59615526400 64434745600 67253765720 70793437600 84067207150 107606025152 113269500160 128869491200 134507531440 141586875200 168134414300 215212050304 226539000320 269015062880 283173750400 336268828600 430424100608 538030125760 566347500800 672537657200 860848201216 1076060251520 1132695001600 1345075314400 2152120503040 2690150628800 4304241006080 5380301257600 10760602515200 21521205030400
• Sum of all divisors σ(n): 56613512284560
• Sum of proper divisors (its aliquot sum) s(n): 35092307254160
• 21521205030400 is an abundant number, because the sum of its proper divisors (35092307254160) is greater than itself. Its abundance is 13571102223760

Bases of 21521205030400

• Binary: 100111001001011001011110001111110111000000000₂
• Hexadecimal: 0x1392CBC7EE00
• Base-36: 7MMPDTB0G

Squares and roots of 21521205030400

• 21521205030400 squared (21521205030400²) is 463162265960514264924160000
• 21521205030400 cubed (21521205030400³) is 9967810088080882286056790466494464000000
• The square root of 21521205030400 is 4639095.2814530551
• The cube root of 21521205030400 is 27815.6274945887

Scales and comparisons

• 21,521,205,030,400 seconds is equal to 684,307 years, 39 weeks, 4 hours, 26 minutes, 40 seconds.
• To count from 1 to 21,521,205,030,400 would take you about one million, seven hundred ten thousand, seven hundred sixty-nine 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 21521205030400 cubic inches would be around 2318 feet tall.

Recreational maths with 21521205030400

• 21521205030400 backwards is 00403050212512
• 21521205030400 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21521205030400's digits is 25
• More coming soon!