20739747840

Names of 20739747840

• Cardinal: 20739747840 can be written as Twenty billion, seven hundred thirty-nine million, seven hundred forty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.073974784 × 10¹⁰

Factors of 20739747840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 100

Divisors of 20739747840

• Number of divisors d(n): 468
• 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 49 56 60 64 70 80 83 84 96 98 105 112 120 128 140 147 160 166 168 192 196 210 224 240 245 249 256 280 294 320 332 336 384 392 415 420 448 480 490 498 512 560 581 588 640 664 672 735 768 784 830 840 896 960 980 996 1024 1120 1162 1176 1245 1280 1328 1344 1470 1536 1568 1660 1680 1743 1792 1920 1960 1992 2048 2240 2324 2352 2490 2560 2656 2688 2905 2940 3072 3136 3320 3360 3486 3584 3840 3920 3984 4067 4096 4480 4648 4704 4980 5120 5312 5376 5810 5880 6144 6272 6640 6720 6889 6972 7168 7680 7840 7968 8134 8715 8960 9296 9408 9960 10240 10624 10752 11620 11760 12201 12288 12544 13280 13440 13778 13944 14336 15360 15680 15936 16268 17430 17920 18592 18816 19920 20335 20480 20667 21248 21504 23240 23520 24402 25088 26560 26880 27556 27888 28672 30720 31360 31872 32536 34445 34860 35840 37184 37632 39840 40670 41334 42496 43008 46480 47040 48223 48804 50176 53120 53760 55112 55776 61005 61440 62720 63744 65072 68890 69720 71680 74368 75264 79680 81340 82668 84992 86016 92960 94080 96446 97608 100352 103335 106240 107520 110224 111552 122010 125440 127488 130144 137780 139440 143360 144669 148736 150528 159360 162680 165336 169984 185920 188160 192892 195216 200704 206670 212480 215040 220448 223104 241115 244020 250880 254976 260288 275560 278880 289338 297472 301056 318720 325360 330672 337561 339968 371840 376320 385784 390432 413340 424960 430080 440896 446208 482230 488040 501760 509952 520576 551120 557760 578676 594944 602112 637440 650720 661344 675122 723345 743680 752640 771568 780864 826680 849920 881792 892416 964460 976080 1003520 1012683 1019904 1041152 1102240 1115520 1157352 1189888 1274880 1301440 1322688 1350244 1446690 1487360 1505280 1543136 1561728 1653360 1687805 1699840 1763584 1784832 1928920 1952160 2025366 2082304 2204480 2231040 2314704 2379776 2549760 2602880 2645376 2700488 2893380 2974720 3010560 3086272 3123456 3306720 3375610 3527168 3569664 3857840 3904320 4050732 4164608 4408960 4462080 4629408 5063415 5099520 5205760 5290752 5400976 5786760 5949440 6172544 6246912 6613440 6751220 7054336 7139328 7715680 7808640 8101464 8329216 8817920 8924160 9258816 10126830 10411520 10581504 10801952 11573520 11898880 12345088 12493824 13226880 13502440 14108672 15431360 15617280 16202928 16658432 17635840 17848320 18517632 20253660 20823040 21163008 21603904 23147040 24690176 24987648 26453760 27004880 28217344 30862720 31234560 32405856 35271680 35696640 37035264 40507320 41646080 42326016 43207808 46294080 49380352 49975296 52907520 54009760 61725440 62469120 64811712 70543360 74070528 81014640 83292160 84652032 86415616 92588160 98760704 105815040 108019520 123450880 124938240 129623424 141086720 148141056 162029280 172831232 185176320 197521408 211630080 216039040 246901760 249876480 259246848 296282112 324058560 345662464 370352640 423260160 432078080 493803520 518493696 592564224 648117120 691324928 740705280 864156160 987607040 1036987392 1296234240 1382649856 1481410560 1728312320 2073974784 2592468480 2962821120 3456624640 4147949568 5184936960 6913249280 10369873920 20739747840
• Sum of all divisors σ(n): 78134473224
• Sum of proper divisors (its aliquot sum) s(n): 57394725384
• 20739747840 is an abundant number, because the sum of its proper divisors (57394725384) is greater than itself. Its abundance is 36654977544

Bases of 20739747840

• Binary: 10011010100001011110111000000000000₂
• Hexadecimal: 0x4D42F7000
• Base-36: 9IZWRUO

Squares and roots of 20739747840

• 20739747840 squared (20739747840²) is 430137140466784665600
• 20739747840 cubed (20739747840³) is 8920935829899773860122722304000
• The square root of 20739747840 is 144013.0127453765
• The cube root of 20739747840 is 2747.4796893573

Scales and comparisons

• 20,739,747,840 seconds is equal to 659 years, 23 weeks, 6 days, 9 hours, 4 minutes.
• To count from 1 to 20,739,747,840 would take you about one thousand, three hundred eighteen 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 20739747840 cubic inches would be around 229 feet tall.

Recreational maths with 20739747840

• 20739747840 backwards is 04874793702
• The number of decimal digits it has is: 11
• The sum of 20739747840's digits is 51
• More coming soon!