12556742640

Names of 12556742640

• Cardinal: 12556742640 can be written as Twelve billion, five hundred fifty-six million, seven hundred forty-two thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.255674264 × 10¹⁰

Factors of 12556742640

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3982

Divisors of 12556742640

• Number of divisors d(n): 320
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 17 20 24 26 30 34 39 40 48 51 52 60 61 65 68 78 80 85 102 104 120 122 130 136 156 170 183 195 204 208 221 240 244 255 260 272 305 312 340 366 390 408 442 488 510 520 610 624 663 680 732 780 793 816 884 915 976 1020 1037 1040 1105 1220 1326 1360 1464 1560 1586 1768 1830 2040 2074 2210 2379 2440 2652 2928 3111 3120 3172 3315 3536 3660 3881 3965 4080 4148 4420 4758 4880 5185 5304 6222 6344 6630 7320 7762 7930 8296 8840 9516 10370 10608 11643 11895 12444 12688 13260 13481 14640 15524 15555 15860 16592 17680 19032 19405 20740 23286 23790 24888 26520 26962 31048 31110 31720 38064 38810 40443 41480 46572 47580 49776 50453 53040 53924 58215 62096 62220 63440 65977 67405 77620 80886 82960 93144 95160 100906 107848 116430 124440 131954 134810 151359 155240 161772 186288 190320 197931 201812 202215 215696 232860 236741 248880 252265 263908 269620 302718 310480 323544 329885 395862 403624 404430 465720 473482 504530 527816 539240 605436 647088 659770 710223 756795 791724 807248 808860 857701 931440 946964 989655 1009060 1055632 1078480 1183705 1210872 1319540 1420446 1513590 1583448 1617720 1715402 1893928 1979310 2018120 2367410 2421744 2573103 2639080 2840892 3027180 3077633 3166896 3235440 3430804 3551115 3787856 3958620 4024597 4036240 4288505 4734820 5146206 5278160 5681784 6054360 6155266 6861608 7102230 7917240 8049194 8577010 9232899 9469640 10292412 11363568 12073791 12108720 12310532 12865515 13723216 14204460 15388165 15834480 16098388 17154020 18465798 18939280 20122985 20584824 24147582 24621064 25731030 28408920 30776330 32196776 34308040 36931596 40245970 41169648 46164495 48295164 49242128 51462060 52319761 56817840 60368955 61552660 64393552 68616080 73863192 80491940 92328990 96590328 102924120 104639522 120737910 123105320 147726384 156959283 160983880 184657980 193180656 205848240 209279044 241475820 246210640 261598805 313918566 321967760 369315960 418558088 482951640 523197610 627837132 738631920 784796415 837116176 965903280 1046395220 1255674264 1569592830 2092790440 2511348528 3139185660 4185580880 6278371320 12556742640
• Sum of all divisors σ(n): 45125361792
• Sum of proper divisors (its aliquot sum) s(n): 32568619152
• 12556742640 is an abundant number, because the sum of its proper divisors (32568619152) is greater than itself. Its abundance is 20011876512

Bases of 12556742640

• Binary: 1011101100011100001010111111110000₂
• Hexadecimal: 0x2EC70AFF0
• Base-36: 5RNYKMO

Squares and roots of 12556742640

• 12556742640 squared (12556742640²) is 157671785727194169600
• 12556742640 cubed (12556742640³) is 1979844034965602436975711744000
• The square root of 12556742640 is 112056.8723461439
• The cube root of 12556742640 is 2324.3007965693

Scales and comparisons

• 12,556,742,640 seconds is equal to 399 years, 13 weeks, 5 days, 16 hours, 4 minutes.
• To count from 1 to 12,556,742,640 would take you about seven hundred ninety-eight 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 12556742640 cubic inches would be around 193.7 feet tall.

Recreational maths with 12556742640

• 12556742640 backwards is 04624765521
• The number of decimal digits it has is: 11
• The sum of 12556742640's digits is 42
• More coming soon!