12749117920

Names of 12749117920

• Cardinal: 12749117920 can be written as Twelve billion, seven hundred forty-nine million, one hundred seventeen thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.274911792 × 10¹⁰

Factors of 12749117920

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 456

Divisors of 12749117920

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 49 55 56 70 77 80 88 98 110 112 140 154 160 176 196 220 224 245 280 308 343 352 385 392 431 440 490 539 560 616 686 770 784 862 880 980 1078 1120 1232 1372 1540 1568 1715 1724 1760 1960 2155 2156 2401 2464 2695 2744 3017 3080 3430 3448 3773 3920 4310 4312 4741 4802 5390 5488 6034 6160 6860 6896 7546 7840 8620 8624 9482 9604 10780 10976 12005 12068 12320 13720 13792 15085 15092 16807 17240 17248 18865 18964 19208 21119 21560 23705 24010 24136 26411 27440 30170 30184 33187 33614 34480 37730 37928 38416 42238 43120 47410 48020 48272 52822 54880 60340 60368 66374 67228 68960 75460 75856 76832 84035 84476 86240 94820 96040 96544 105595 105644 120680 120736 132055 132748 134456 147833 150920 151712 165935 168070 168952 184877 189640 192080 211190 211288 232309 241360 264110 265496 268912 295666 301840 331870 336140 337904 369754 379280 384160 422380 422576 464618 482720 528220 530992 537824 591332 603680 663740 672280 675808 739165 739508 758560 844760 845152 924385 929236 1034831 1056440 1061984 1161545 1182664 1327480 1344560 1478330 1479016 1626163 1689520 1848770 1858472 2069662 2112880 2323090 2365328 2654960 2689120 2956660 2958032 3252326 3379040 3697540 3716944 4139324 4225760 4646180 4730656 5174155 5309920 5913320 5916064 6504652 7243817 7395080 7433888 8130815 8278648 9292360 10348310 11383141 11826640 13009304 14487634 14790160 16261630 16557296 18584720 20696620 22766282 23653280 26018608 28975268 29580320 32523260 33114592 36219085 37169440 41393240 45532564 52037216 56915705 57950536 65046520 72438170 79681987 82786480 91065128 113831410 115901072 130093040 144876340 159363974 165572960 182130256 227662820 231802144 260186080 289752680 318727948 364260512 398409935 455325640 579505360 637455896 796819870 910651280 1159010720 1274911792 1593639740 1821302560 2549823584 3187279480 6374558960 12749117920
• Sum of all divisors σ(n): 38422895616
• Sum of proper divisors (its aliquot sum) s(n): 25673777696
• 12749117920 is an abundant number, because the sum of its proper divisors (25673777696) is greater than itself. Its abundance is 12924659776

Bases of 12749117920

• Binary: 1011110111111010000001100111100000₂
• Hexadecimal: 0x2F7E819E0
• Base-36: 5UUHUCG

Squares and roots of 12749117920

• 12749117920 squared (12749117920²) is 162540007738065126400
• 12749117920 cubed (12749117920³) is 2072241725370304769113305088000
• The square root of 12749117920 is 112911.9919229131
• The cube root of 12749117920 is 2336.1104888473

Scales and comparisons

• 12,749,117,920 seconds is equal to 405 years, 19 weeks, 6 days, 5 hours, 38 minutes, 40 seconds.
• To count from 1 to 12,749,117,920 would take you about eight hundred ten 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 12749117920 cubic inches would be around 194.7 feet tall.

Recreational maths with 12749117920

• 12749117920 backwards is 02971194721
• The number of decimal digits it has is: 11
• The sum of 12749117920's digits is 43
• More coming soon!