21494949280

Names of 21494949280

• Cardinal: 21494949280 can be written as Twenty-one billion, four hundred ninety-four million, nine hundred forty-nine thousand, two hundred eighty.

Scientific notation

• Scientific notation: 2.149494928 × 10¹⁰

Factors of 21494949280

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 344

Divisors of 21494949280

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 4 5 7 8 10 14 16 19 20 28 32 35 38 40 56 70 73 76 80 95 101 112 133 137 140 146 152 160 190 202 224 266 274 280 292 304 365 380 404 505 511 532 548 560 584 608 665 685 707 730 760 808 959 1010 1022 1064 1096 1120 1168 1330 1370 1387 1414 1460 1520 1616 1918 1919 2020 2044 2128 2192 2336 2555 2603 2660 2740 2774 2828 2920 3040 3232 3535 3836 3838 4040 4088 4256 4384 4795 5110 5206 5320 5480 5548 5656 5840 6935 7070 7373 7672 7676 8080 8176 9590 9595 9709 10001 10220 10412 10640 10960 11096 11312 11680 13015 13433 13837 13870 14140 14746 15344 15352 16160 16352 18221 19180 19190 19418 20002 20440 20824 21280 21920 22192 22624 26030 26866 27674 27740 28280 29492 30688 30704 36442 36865 38360 38380 38836 40004 40880 41648 44384 48545 50005 51611 52060 53732 55348 55480 56560 58984 61408 67165 69185 70007 72884 73730 76720 76760 77672 80008 81760 83296 91105 96859 97090 100010 103222 104120 107464 110696 110960 113120 117968 134330 138370 140014 140087 145768 147460 153440 153520 155344 160016 182210 190019 193718 194180 200020 206444 208240 214928 221392 221920 235936 258055 262903 268660 276740 280028 280174 291536 294920 307040 310688 320032 350035 364420 380038 387436 388360 400040 412888 416480 429856 442784 484295 516110 525806 537320 553480 560056 560348 583072 589840 700070 700435 728840 760076 774872 776720 800080 825776 950095 968590 980609 1010101 1032220 1051612 1074640 1106960 1120112 1120696 1179680 1314515 1330133 1400140 1400870 1457680 1520152 1549744 1553440 1600160 1651552 1840321 1900190 1937180 1961218 2020202 2064440 2103224 2149280 2213920 2240224 2241392 2629030 2660266 2800280 2801740 2915360 3040304 3099488 3680642 3800380 3874360 3922436 4040404 4128880 4206448 4482784 4903045 5050505 5258060 5320532 5600560 5603480 6080608 6650665 7070707 7361284 7600760 7748720 7844872 8080808 8257760 8412896 9201605 9806090 10101010 10516120 10641064 11201120 11206960 13301330 14141414 14722568 15201520 15497440 15689744 16161616 18403210 19191919 19612180 20202020 21032240 21282128 22413920 26602660 28282828 29445136 30403040 31379488 32323232 35353535 36806420 38383838 39224360 40404040 42064480 42564256 53205320 56565656 58890272 70707070 73612840 76767676 78448720 80808080 95959595 106410640 113131312 134343433 141414140 147225680 153535352 156897440 161616160 191919190 212821280 226262624 268686866 282828280 294451360 307070704 383838380 537373732 565656560 614141408 671717165 767676760 1074747464 1131313120 1343434330 1535353520 2149494928 2686868660 3070707040 4298989856 5373737320 10747474640 21494949280
• Sum of all divisors σ(n): 62997419520
• Sum of proper divisors (its aliquot sum) s(n): 41502470240
• 21494949280 is an abundant number, because the sum of its proper divisors (41502470240) is greater than itself. Its abundance is 20007520960

Bases of 21494949280

• Binary: 10100000001001100101110010110100000₂
• Hexadecimal: 0x50132E5A0
• Base-36: 9VHJD0G

Squares and roots of 21494949280

• 21494949280 squared (21494949280²) is 462032844549772518400
• 21494949280 cubed (21494949280³) is 9931372559291484718545866752000
• The square root of 21494949280 is 146611.5591622979
• The cube root of 21494949280 is 2780.4311254495

Scales and comparisons

• 21,494,949,280 seconds is equal to 683 years, 24 weeks, 4 days, 3 hours, 14 minutes, 40 seconds.
• To count from 1 to 21,494,949,280 would take you about one thousand, three hundred sixty-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 21494949280 cubic inches would be around 231.7 feet tall.

Recreational maths with 21494949280

• 21494949280 backwards is 08294949412
• The number of decimal digits it has is: 11
• The sum of 21494949280's digits is 52
• More coming soon!