121537605420

Names of 121537605420

• Cardinal: 121537605420 can be written as One hundred twenty-one billion, five hundred thirty-seven million, six hundred five thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.2153760542 × 10¹¹

Factors of 121537605420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 18610

Divisors of 121537605420

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 28 30 33 35 36 42 43 44 45 55 60 63 66 70 77 84 86 90 99 105 110 121 126 129 132 140 154 165 172 180 198 210 215 220 231 242 252 258 301 308 315 330 363 385 387 396 420 430 462 473 484 495 516 602 605 630 645 660 693 726 770 774 847 860 903 924 946 990 1089 1155 1204 1210 1260 1290 1386 1419 1452 1505 1540 1548 1694 1806 1815 1892 1935 1980 2178 2310 2365 2420 2541 2580 2709 2772 2838 3010 3311 3388 3465 3612 3630 3870 4235 4257 4356 4515 4620 4730 5082 5203 5418 5445 5676 6020 6622 6930 7095 7260 7623 7740 8470 8514 9030 9460 9933 10164 10406 10836 10890 12705 13244 13545 13860 14190 15246 15609 16555 16940 17028 18060 18539 19866 20812 21285 21780 25410 26015 27090 28380 29799 30492 31218 33110 36421 37078 38115 39732 42570 46827 49665 50820 52030 54180 55617 59598 62436 66220 72842 74156 76230 78045 85140 92695 93654 99330 104060 109263 111234 119196 129773 145684 148995 152460 156090 166851 182105 185390 187308 198660 203929 218526 222468 234135 259546 278085 297990 312180 327789 333702 364210 370780 389319 407858 437052 468270 519092 546315 556170 595980 611787 648865 655578 667404 728420 778638 797177 815716 834255 936540 1019645 1092630 1112340 1167957 1223574 1297730 1311156 1427503 1557276 1594354 1638945 1668510 1835361 1946595 2039290 2185260 2243219 2335914 2391531 2447148 2595460 2855006 3058935 3188708 3277890 3337020 3670722 3893190 3985885 4078580 4282509 4486438 4671828 4783062 5580239 5710012 5839785 6117870 6555780 6729657 7137515 7174593 7341444 7786380 7971770 8565018 8768947 8972876 9176805 9566124 11160478 11216095 11679570 11957655 12235740 12847527 13459314 14275030 14349186 15702533 15943540 16740717 17130036 17537894 18353610 20188971 21412545 22320956 22432190 23359140 23915310 25695054 26306841 26918628 27901195 28550060 28698372 31405066 33481434 33648285 35075788 35872965 36707220 40377942 42825090 43844735 44864380 47107599 47830620 50222151 51390108 52613682 55802390 61382629 62810132 64237635 66962868 67296570 71745930 78512665 78920523 80755884 83703585 85650180 87689470 94215198 96458417 100444302 100944855 105227364 111604780 122765258 128475270 131534205 134593140 141322797 143491860 157025330 157841046 167407170 175378940 184147887 188430396 192916834 200888604 201889710 235537995 245530516 251110755 256950540 263068410 282645594 289375251 306913145 314050660 315682092 334814340 368295774 385833668 394602615 403779420 471075990 482292085 502221510 526136820 552443661 565291188 578750502 613826290 675208919 706613985 736591548 789205230 868125753 920739435 942151980 964584170 1004443020 1104887322 1157501004 1227652580 1350417838 1413227970 1446876255 1578410460 1736251506 1841478870 1929168340 2025626757 2209774644 2700835676 2762218305 2826455940 2893752510 3376044595 3472503012 3682957740 4051253514 4340628765 5524436610 5787505020 6076880271 6752089190 8102507028 8681257530 10128133785 11048873220 12153760542 13504178380 17362515060 20256267570 24307521084 30384401355 40512535140 60768802710 121537605420
• Sum of all divisors σ(n): 473910877440
• Sum of proper divisors (its aliquot sum) s(n): 352373272020
• 121537605420 is an abundant number, because the sum of its proper divisors (352373272020) is greater than itself. Its abundance is 230835666600

Bases of 121537605420

• Binary: 1110001001100001101001010111100101100₂
• Hexadecimal: 0x1C4C34AF2C
• Base-36: 1JU0COJ0

Squares and roots of 121537605420

• 121537605420 squared (121537605420²) is 14771389531227613376400
• 121537605420 cubed (121537605420³) is 1795279312351460442749217140088000
• The square root of 121537605420 is 348622.4396392177
• The cube root of 121537605420 is 4953.4018097723

Scales and comparisons

• 121,537,605,420 seconds is equal to 3,864 years, 27 weeks, 5 hours, 57 minutes.
• To count from 1 to 121,537,605,420 would take you about seven thousand, seven hundred twenty-nine 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 121537605420 cubic inches would be around 412.8 feet tall.

Recreational maths with 121537605420

• 121537605420 backwards is 024506735121
• 121537605420 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 121537605420's digits is 36
• More coming soon!