20129938920

Names of 20129938920

• Cardinal: 20129938920 can be written as Twenty billion, one hundred twenty-nine million, nine hundred thirty-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.012993892 × 10¹⁰

Factors of 20129938920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2212

Divisors of 20129938920

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 13 14 15 18 20 21 24 26 28 30 35 36 39 40 41 42 45 49 52 56 60 63 65 70 72 78 82 84 90 91 98 104 105 117 120 123 126 130 140 147 156 164 168 180 182 195 196 205 210 234 245 246 252 260 273 280 287 294 312 315 328 360 364 369 390 392 410 420 441 455 468 490 492 504 520 533 546 574 585 588 615 630 637 728 735 738 780 819 820 840 861 882 910 936 980 984 1066 1092 1148 1170 1176 1230 1260 1274 1365 1435 1470 1476 1560 1599 1638 1640 1722 1764 1820 1845 1911 1960 2009 2132 2141 2184 2205 2296 2340 2460 2520 2548 2583 2665 2730 2870 2940 2952 3185 3198 3276 3444 3528 3640 3690 3731 3822 4018 4095 4264 4282 4305 4410 4680 4797 4920 5096 5166 5330 5460 5733 5740 5880 6027 6370 6396 6423 6552 6888 7380 7462 7644 7995 8036 8190 8564 8610 8820 9555 9594 10045 10332 10660 10705 10920 11193 11466 11480 12054 12740 12792 12846 12915 14760 14924 14987 15288 15990 16072 16380 17128 17220 17640 18081 18655 19110 19188 19269 20090 20664 21320 21410 22386 22932 23985 24108 25480 25692 25830 26117 27833 28665 29848 29974 30135 31980 32115 32760 33579 34440 36162 37310 38220 38376 38538 40180 42820 44772 44961 45864 47970 48216 51384 51660 52234 55666 55965 57330 59948 60270 63960 64230 67158 72324 74620 74935 76440 77076 78351 80360 83499 85640 87781 89544 89922 90405 95940 96345 103320 104468 104909 111332 111930 114660 119896 120540 128460 130585 134316 134883 139165 144648 149240 149870 154152 156702 166998 167895 175562 179844 180810 191880 192690 194831 208936 209818 222664 223860 224805 229320 235053 241080 250497 256920 261170 263343 268632 269766 278330 299740 313404 314727 333996 335790 351124 359688 361620 385380 389662 391755 417495 419636 438905 447720 449610 470106 500994 522340 524545 526686 539532 556660 584493 599480 614467 626808 629454 667992 671580 674415 702248 723240 770760 779324 783510 790029 834990 839272 877810 899220 940212 944181 974155 1001988 1044680 1049090 1053372 1079064 1113320 1141153 1168986 1175265 1228934 1252485 1258908 1316715 1343160 1348830 1363817 1558648 1567020 1573635 1580058 1669980 1753479 1755620 1798440 1843401 1880424 1888362 1948310 2003976 2098180 2106744 2282306 2337972 2350530 2457868 2504970 2517816 2633430 2697660 2727634 2922465 3072335 3134040 3147270 3160116 3339960 3423459 3506958 3511240 3686802 3776724 3896620 3950145 4091451 4196360 4301269 4564612 4675944 4701060 4720905 4915736 5009940 5266860 5395320 5455268 5530203 5705765 5844930 6144670 6294540 6320232 6819085 6846918 7013916 7373604 7553448 7793240 7900290 7988071 8182902 8602538 8767395 9129224 9217005 9402120 9441810 10019880 10270377 10533720 10910536 11060406 11411530 11689860 12274353 12289340 12589080 12903807 13638170 13693836 14027832 14747208 15800580 15976142 16365804 17117295 17205076 17534790 18434010 18883620 20457255 20540754 21506345 22120812 22823060 23379720 23964213 24548706 24578680 25807614 27276340 27387672 27651015 31601160 31952284 32731608 34234590 34410152 35069580 36868020 37767240 38711421 39940355 40914510 41081508 43012690 44241624 45646120 47928426 49097412 51351885 51615228 54552680 55302030 55916497 61371765 63904568 64519035 68469180 70139160 71892639 73736040 77422842 79880710 81829020 82163016 86025380 95856852 98194824 102703770 103230456 110604060 111832994 119821065 122743530 129038070 136938360 143785278 154845684 159761420 163658040 167749491 172050760 191713704 193557105 205407540 221208120 223665988 239642130 245487060 258076140 279582485 287570556 309691368 319522840 335498982 359463195 387114210 410815080 447331976 479284260 490974120 503248473 516152280 559164970 575141112 670997964 718926390 774228420 838747455 958568520 1006496946 1118329940 1341995928 1437852780 1548456840 1677494910 2012993892 2236659880 2516242365 2875705560 3354989820 4025987784 5032484730 6709979640 10064969460 20129938920
• Sum of all divisors σ(n): 83995788240
• Sum of proper divisors (its aliquot sum) s(n): 63865849320
• 20129938920 is an abundant number, because the sum of its proper divisors (63865849320) is greater than itself. Its abundance is 43735910400

Bases of 20129938920

• Binary: 10010101111110101100111110111101000₂
• Hexadecimal: 0x4AFD67DE8
• Base-36: 98WUGA0

Squares and roots of 20129938920

• 20129938920 squared (20129938920²) is 405214440922930766400
• 20129938920 cubed (20129938920³) is 8156941945280544755020788288000
• The square root of 20129938920 is 141880.0159289531
• The cube root of 20129938920 is 2720.2834065281

Scales and comparisons

• 20,129,938,920 seconds is equal to 640 years, 3 weeks, 4 days, 9 hours, 42 minutes.
• To count from 1 to 20,129,938,920 would take you about one thousand, two hundred eighty 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 20129938920 cubic inches would be around 226.7 feet tall.

Recreational maths with 20129938920

• 20129938920 backwards is 02983992102
• 20129938920 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20129938920's digits is 45
• More coming soon!