20913553920

Names of 20913553920

• Cardinal: 20913553920 can be written as Twenty billion, nine hundred thirteen million, five hundred fifty-three thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.091355392 × 10¹⁰

Factors of 20913553920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 90

Divisors of 20913553920

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 73 80 84 96 105 112 120 128 140 146 160 168 192 210 219 224 240 256 280 292 320 336 365 384 420 438 448 480 511 512 560 584 640 672 730 768 840 876 896 960 1022 1095 1120 1168 1280 1344 1460 1533 1536 1680 1752 1792 1920 2044 2190 2240 2336 2555 2560 2688 2920 3066 3360 3504 3584 3840 4088 4380 4480 4672 5110 5329 5376 5840 6132 6720 7008 7665 7680 8176 8760 8960 9344 10220 10658 10752 11680 12264 13440 14016 15330 15987 16352 17520 17920 18688 20440 21316 23360 24528 26645 26880 28032 30660 31974 32704 35040 37303 37376 40880 42632 46720 49056 53290 53760 56064 61320 63948 65408 70080 74606 79935 81760 85264 93440 98112 106580 111909 112128 122640 127896 130816 140160 149212 159870 163520 170528 186515 186880 196224 213160 223818 245280 255792 261632 280320 298424 319740 327040 341056 373030 389017 392448 426320 447636 490560 511584 559545 560640 596848 639480 654080 682112 746060 778034 784896 852640 895272 981120 1023168 1119090 1167051 1193696 1278960 1308160 1364224 1492120 1556068 1705280 1790544 1945085 1962240 2046336 2238180 2334102 2387392 2557920 2723119 2728448 2984240 3112136 3410560 3581088 3890170 3924480 4092672 4476360 4668204 4774784 5115840 5446238 5835255 5968480 6224272 6821120 7162176 7780340 8169357 8185344 8952720 9336408 9549568 10231680 10892476 11670510 11936960 12448544 13615595 13642240 14324352 15560680 16338714 17905440 18672816 19099136 20463360 21784952 23341020 23873920 24897088 27231190 28648704 31121360 32677428 35810880 37345632 40846785 40926720 43569904 46682040 47747840 49794176 54462380 57297408 62242720 65354856 71621760 74691264 81693570 87139808 93364080 95495680 99588352 108924760 124485440 130709712 143243520 149382528 163387140 174279616 186728160 199176704 217849520 248970880 261419424 286487040 298765056 326774280 348559232 373456320 435699040 497941760 522838848 597530112 653548560 697118464 746912640 871398080 995883520 1045677696 1307097120 1394236928 1493825280 1742796160 2091355392 2614194240 2987650560 3485592320 4182710784 5228388480 6971184640 10456776960 20913553920
• Sum of all divisors σ(n): 77470398720
• Sum of proper divisors (its aliquot sum) s(n): 56556844800
• 20913553920 is an abundant number, because the sum of its proper divisors (56556844800) is greater than itself. Its abundance is 35643290880

Bases of 20913553920

• Binary: 10011011110100010111000001000000000₂
• Hexadecimal: 0x4DE8B8200
• Base-36: 9LVE1HC

Squares and roots of 20913553920

• 20913553920 squared (20913553920²) is 437376737564747366400
• 20913553920 cubed (20913553920³) is 9147101984414033538384396288000
• The square root of 20913553920 is 144615.1925628839
• The cube root of 20913553920 is 2755.1332845049

Scales and comparisons

• 20,913,553,920 seconds is equal to 664 years, 51 weeks, 2 days, 32 minutes.
• To count from 1 to 20,913,553,920 would take you about one thousand, three hundred twenty-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 20913553920 cubic inches would be around 229.6 feet tall.

Recreational maths with 20913553920

• 20913553920 backwards is 02935531902
• The number of decimal digits it has is: 11
• The sum of 20913553920's digits is 39
• More coming soon!