12813928920

Names of 12813928920

• Cardinal: 12813928920 can be written as Twelve billion, eight hundred thirteen million, nine hundred twenty-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.281392892 × 10¹⁰

Factors of 12813928920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 120

Divisors of 12813928920

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 18 20 24 26 27 30 36 39 40 45 52 54 60 65 72 78 90 97 104 108 117 120 130 135 156 180 194 195 216 234 260 270 291 312 351 360 388 390 468 485 520 540 582 585 702 776 780 873 936 970 1080 1164 1170 1261 1404 1455 1560 1746 1755 1940 2328 2340 2522 2619 2808 2910 3492 3510 3783 3880 4365 4680 5044 5238 5820 6305 6984 7020 7566 8730 9409 10088 10476 11349 11640 12610 13095 14040 15132 17460 18818 18915 20952 22698 25220 26190 28227 30264 34047 34920 37636 37830 45396 47045 50440 52380 56454 56745 68094 75272 75660 84681 90792 94090 104760 112908 113490 122317 136188 141135 151320 169362 170235 188180 225816 226980 244634 254043 272376 282270 338724 340470 366951 376360 423405 453960 489268 508086 564540 611585 677448 680940 733902 846810 912673 978536 1016172 1100853 1129080 1223170 1270215 1361880 1467804 1693620 1825346 1834755 2032344 2201706 2446340 2540430 2738019 2935608 3302559 3387240 3650692 3669510 4403412 4563365 4892680 5080860 5476038 5504265 6605118 7301384 7339020 8214057 8806824 9126730 10161720 10952076 11008530 11864749 13210236 13690095 14678040 16428114 16512795 18253460 21904152 22017060 23729498 24642171 26420472 27380190 32856228 33025590 35594247 36506920 41070285 44034120 47458996 49284342 54760380 59323745 65712456 66051180 71188494 82140570 94917992 98568684 106782741 109520760 118647490 123210855 132102360 142376988 164281140 177971235 197137368 213565482 237294980 246421710 284753976 320348223 328562280 355942470 427130964 474589960 492843420 533913705 640696446 711884940 854261928 985686840 1067827410 1281392892 1423769880 1601741115 2135654820 2562785784 3203482230 4271309640 6406964460 12813928920
• Sum of all divisors σ(n): 46477872000
• Sum of proper divisors (its aliquot sum) s(n): 33663943080
• 12813928920 is an abundant number, because the sum of its proper divisors (33663943080) is greater than itself. Its abundance is 20850014160

Bases of 12813928920

• Binary: 1011111011110001010000100111011000₂
• Hexadecimal: 0x2FBC509D8
• Base-36: 5VX2YU0

Squares and roots of 12813928920

• 12813928920 squared (12813928920²) is 164196774366812366400
• 12813928920 cubed (12813928920³) is 2104005795629611670026596288000
• The square root of 12813928920 is 113198.6259633923
• The cube root of 12813928920 is 2340.0623914989

Scales and comparisons

• 12,813,928,920 seconds is equal to 407 years, 23 weeks, 8 hours, 42 minutes.
• To count from 1 to 12,813,928,920 would take you about eight hundred fourteen 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 12813928920 cubic inches would be around 195 feet tall.

Recreational maths with 12813928920

• 12813928920 backwards is 02982931821
• 12813928920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12813928920's digits is 45
• More coming soon!