20208721920

Names of 20208721920

• Cardinal: 20208721920 can be written as Twenty billion, two hundred eight million, seven hundred twenty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.020872192 × 10¹⁰

Factors of 20208721920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 199

Divisors of 20208721920

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 29 30 32 40 48 53 58 60 64 80 87 96 106 107 116 120 128 145 159 160 174 192 212 214 232 240 256 265 290 318 320 321 348 384 424 428 435 464 480 512 530 535 580 636 640 642 696 768 795 848 856 870 928 960 1024 1060 1070 1160 1272 1280 1284 1392 1536 1537 1590 1605 1696 1712 1740 1856 1920 2048 2120 2140 2320 2544 2560 2568 2784 3072 3074 3103 3180 3210 3392 3424 3480 3712 3840 4096 4240 4280 4611 4640 5088 5120 5136 5568 5671 6144 6148 6206 6360 6420 6784 6848 6960 7424 7680 7685 8192 8480 8560 9222 9280 9309 10176 10240 10272 11136 11342 12288 12296 12412 12720 12840 13568 13696 13920 14848 15360 15370 15515 16960 17013 17120 18444 18560 18618 20352 20480 20544 22272 22684 23055 24576 24592 24824 25440 25680 27136 27392 27840 28355 29696 30720 30740 31030 33920 34026 34240 36888 37120 37236 40704 40960 41088 44544 45368 46110 46545 49184 49648 50880 51360 54272 54784 55680 56710 59392 61440 61480 62060 67840 68052 68480 73776 74240 74472 81408 82176 85065 89088 90736 92220 93090 98368 99296 101760 102720 108544 109568 111360 113420 118784 122880 122960 124120 135680 136104 136960 147552 148480 148944 162816 164352 164459 170130 178176 181472 184440 186180 196736 198592 203520 205440 217088 219136 222720 226840 237568 245920 248240 271360 272208 273920 295104 296960 297888 325632 328704 328918 340260 356352 362944 368880 372360 393472 397184 407040 410880 434176 438272 445440 453680 491840 493377 496480 542720 544416 547840 590208 593920 595776 651264 657408 657836 680520 712704 725888 737760 744720 786944 794368 814080 821760 822295 876544 890880 907360 983680 986754 992960 1085440 1088832 1095680 1180416 1187840 1191552 1302528 1314816 1315672 1361040 1451776 1475520 1489440 1573888 1588736 1628160 1643520 1644590 1781760 1814720 1967360 1973508 1985920 2170880 2177664 2191360 2360832 2383104 2466885 2629632 2631344 2722080 2903552 2951040 2978880 3147776 3177472 3256320 3287040 3289180 3563520 3629440 3934720 3947016 3971840 4355328 4382720 4721664 4766208 4933770 5262688 5444160 5807104 5902080 5957760 6295552 6354944 6512640 6574080 6578360 7258880 7869440 7894032 7943680 8710656 9443328 9532416 9867540 10525376 10888320 11614208 11804160 11915520 12591104 12709888 13148160 13156720 14517760 15738880 15788064 15887360 17421312 18886656 19064832 19735080 21050752 21776640 23228416 23608320 23831040 25419776 26313440 29035520 31477760 31576128 31774720 34842624 37773312 38129664 39470160 42101504 43553280 46456832 47216640 47662080 52626880 58071040 62955520 63152256 63549440 69685248 76259328 78940320 84203008 87106560 94433280 95324160 105253760 116142080 126304512 127098880 139370496 157880640 168406016 174213120 188866560 190648320 210507520 232284160 252609024 315761280 336812032 348426240 381296640 421015040 505218048 631522560 673624064 696852480 842030080 1010436096 1263045120 1347248128 1684060160 2020872192 2526090240 3368120320 4041744384 5052180480 6736240640 10104360960 20208721920
• Sum of all divisors σ(n): 68792872320
• Sum of proper divisors (its aliquot sum) s(n): 48584150400
• 20208721920 is an abundant number, because the sum of its proper divisors (48584150400) is greater than itself. Its abundance is 28375428480

Bases of 20208721920

• Binary: 10010110100100010001010000000000000₂
• Hexadecimal: 0x4B488A000
• Base-36: 9A7R1MO

Squares and roots of 20208721920

• 20208721920 squared (20208721920²) is 408392441639888486400
• 20208721920 cubed (20208721920³) is 8253089287330335201467301888000
• The square root of 20208721920 is 142157.3843315921
• The cube root of 20208721920 is 2723.8275985689

Scales and comparisons

• 20,208,721,920 seconds is equal to 642 years, 29 weeks, 6 days, 5 hours, 52 minutes.
• To count from 1 to 20,208,721,920 would take you about one thousand, two hundred eighty-five 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 20208721920 cubic inches would be around 227 feet tall.

Recreational maths with 20208721920

• 20208721920 backwards is 02912780202
• The number of decimal digits it has is: 11
• The sum of 20208721920's digits is 33
• More coming soon!