129515921920

Names of 129515921920

• Cardinal: 129515921920 can be written as One hundred twenty-nine billion, five hundred fifteen million, nine hundred twenty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 1.2951592192 × 10¹¹

Factors of 129515921920

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 101

Divisors of 129515921920

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 16 20 22 23 28 32 35 40 44 46 49 53 55 56 64 70 77 80 88 92 98 106 110 112 115 121 128 140 154 160 161 176 184 196 212 220 224 230 242 245 253 256 265 280 308 320 322 343 352 368 371 385 392 424 440 448 460 484 490 506 512 530 539 560 583 605 616 640 644 686 704 736 742 770 784 805 847 848 880 896 920 968 980 1012 1060 1078 1120 1127 1166 1210 1219 1232 1265 1280 1288 1372 1408 1472 1484 1540 1568 1610 1694 1696 1715 1760 1771 1792 1840 1855 1936 1960 2024 2120 2156 2240 2254 2332 2420 2438 2464 2530 2560 2576 2597 2695 2744 2783 2816 2915 2944 2968 3080 3136 3220 3388 3392 3430 3520 3542 3584 3680 3710 3773 3872 3920 4048 4081 4235 4240 4312 4480 4508 4664 4840 4876 4928 5060 5152 5194 5390 5488 5566 5632 5635 5830 5888 5929 5936 6095 6160 6272 6413 6440 6776 6784 6860 7040 7084 7360 7420 7546 7744 7840 7889 8096 8162 8470 8480 8533 8624 8855 8960 9016 9328 9680 9752 9856 10120 10304 10388 10780 10976 11132 11270 11660 11776 11858 11872 12190 12320 12397 12544 12826 12880 12985 13409 13552 13568 13720 13915 14080 14168 14720 14840 15092 15488 15680 15778 16192 16324 16940 16960 17066 17248 17710 17920 18032 18179 18656 18865 19360 19481 19504 19712 20240 20405 20608 20776 21560 21952 22264 22540 23320 23716 23744 24380 24640 24794 25088 25652 25760 25970 26818 27104 27136 27440 27830 28160 28336 28567 29440 29645 29680 30184 30976 31360 31556 32065 32384 32648 33880 33920 34132 34496 35420 36064 36358 37312 37730 38720 38962 39008 39424 39445 40480 40810 41216 41503 41552 42665 43120 43904 44528 44891 45080 46640 47432 47488 48760 49280 49588 51304 51520 51940 53636 54208 54880 55660 56672 57134 58880 59290 59360 59731 60368 61952 61985 62720 63112 64130 64768 65296 67045 67760 67840 68264 68992 70840 72128 72716 74624 75460 77440 77924 78016 78890 80960 81620 82432 83006 83104 85330 86240 86779 87808 89056 89782 90160 90895 93280 93863 94864 94976 97405 97520 98560 99176 102608 103040 103880 107272 108416 109760 111320 113344 114268 118580 118720 119462 120736 123970 125440 126224 128260 129536 130592 134090 135520 135680 136367 136528 137984 141680 142835 144256 145432 147499 149248 150920 154880 155848 156032 157780 161920 163240 166012 166208 170660 172480 173558 175616 178112 179564 180320 181790 186560 187726 189728 189952 194810 195040 197120 198352 199969 205216 206080 207515 207760 214544 216832 219520 222640 224455 226688 228536 237160 237440 238924 241472 247940 252448 256520 261184 268180 271040 272734 273056 275968 283360 285670 288512 290864 294998 298496 298655 301840 309760 311696 312064 314237 315560 323840 326480 332024 332416 341320 344960 347116 356224 359128 360640 363580 373120 375452 379456 389620 390080 396704 399938 410432 412160 415030 415520 418117 429088 433664 433895 439040 445280 448910 453376 457072 469315 474320 474880 477848 482944 495880 504896 513040 522368 536360 542080 545468 546112 566720 571340 577024 581728 589996 597310 603680 623392 624128 628474 631120 647680 652960 657041 664048 664832 681835 682640 689920 694232 712448 718256 721280 727160 737495 746240 750904 758912 779240 780160 793408 799876 820864 830060 831040 836234 858176 867790 878080 890560 897820 906752 914144 938630 948640 949760 954569 955696 965888 991760 999845 1009792 1026080 1032493 1044736 1072720 1084160 1090936 1092224 1133440 1142680 1163456 1179992 1194620 1207360 1246784 1256948 1262240 1305920 1314082 1328096 1329664 1363670 1365280 1379840 1388464 1424896 1436512 1442560 1454320 1474990 1492480 1501808 1517824 1558480 1560320 1571185 1586816 1599752 1641728 1660120 1662080 1672468 1716352 1735580 1781120 1795640 1828288 1877260 1897280 1909138 1911392 1931776 1983520 1999690 2019584 2052160 2064986 2089472 2090585 2145440 2168320 2181872 2184448 2199659 2266880 2285360 2326912 2359984 2389240 2414720 2493568 2513896 2524480 2611840 2628164 2656192 2727340 2730560 2776928 2873024 2885120 2908640 2949980 3003616 3035648 3116960 3120640 3142370 3173632 3199504 3283456 3285205 3320240 3324160 3344936 3432704 3471160 3562240 3591280 3656576 3754520 3794560 3818276 3822784 3967040 3999380 4039168 4104320 4129972 4181170 4290880 4363744 4368896 4399318 4533760 4570720 4599287 4653824 4719968 4772845 4778480 4829440 4987136 5027792 5048960 5162465 5223680 5256328 5312384 5454680 5461120 5553856 5746048 5817280 5899960 6007232 6233920 6284740 6347264 6399008 6570410 6640480 6648320 6689872 6865408 6942320 7124480 7182560 7227451 7313152 7509040 7589120 7636552 7645568 7934080 7998760 8208640 8259944 8362340 8581760 8727488 8798636 9141440 9198574 9307648 9439936 9545690 9556960 9658880 9974272 10055584 10097920 10324930 10447360 10512656 10624768 10909360 10922240 10998295 11107712 11492096 11634560 11799920 12014464 12467840 12569480 12798016 13140820 13280960 13379744 13884640 14365120 14454902 14626304 15018080 15178240 15273104 15291136 15868160 15997520 16417280 16519888 16724680 17163520 17454976 17597272 18282880 18397148 18879872 19091380 19113920 20111168 20195840 20649860 21025312 21249536 21818720 21844480 21996590 22215424 22984192 22996435 23269120 23599840 24028928 24935680 25138960 25596032 26281640 26561920 26759488 27769280 28730240 28909804 30036160 30546208 30582272 31736320 31995040 33039776 33449360 34327040 34909952 35194544 36137255 36565760 36794296 37759744 38182760 38227840 40222336 41299720 42050624 43637440 43993180 44430848 45992870 46538240 47199680 48057856 49871360 50277920 50592157 51192064 52563280 53123840 53518976 55538560 57460480 57819608 60072320 61092416 63990080 66079552 66898720 69819904 70389088 72274510 73131520 73588592 75519488 76365520 76455680 80444672 82599440 84101248 87274880 87986360 91985740 94399360 100555840 101184314 102384128 105126560 106247680 107037952 111077120 114920960 115639216 120144640 122184832 127980160 132159104 133797440 140778176 144549020 147177184 152731040 152911360 160889344 165198880 168202496 174549760 175972720 183971480 188798720 201111680 202368628 210253120 214075904 222154240 231278432 240289280 244369664 252960785 255960320 264318208 267594880 281556352 289098040 294354368 305462080 330397760 336404992 349099520 351945440 367942960 377597440 402223360 404737256 420506240 462556864 488739328 505921570 511920640 528636416 535189760 563112704 578196080 588708736 610924160 660795520 703890880 735885920 804446720 809474512 841012480 925113728 1011843140 1070379520 1126225408 1156392160 1177417472 1221848320 1321591040 1407781760 1471771840 1618949024 1682024960 1850227456 2023686280 2312784320 2354834944 2443696640 2643182080 2815563520 2943543680 3237898048 3700454912 4047372560 4625568640 5631127040 5887087360 6475796096 8094745120 9251137280 11774174720 12951592192 16189490240 18502274560 25903184384 32378980480 64757960960 129515921920
• Sum of all divisors σ(n): 423197913600
• Sum of proper divisors (its aliquot sum) s(n): 293681991680
• 129515921920 is an abundant number, because the sum of its proper divisors (293681991680) is greater than itself. Its abundance is 164166069760

Bases of 129515921920

• Binary: 1111000100111110000000010001000000000₂
• Hexadecimal: 0x1E27C02200
• Base-36: 1NHYFOXS

Squares and roots of 129515921920

• 129515921920 squared (129515921920²) is 16774374030787536486400
• 129515921920 cubed (129515921920³) is 2172548517228354251681733541888000
• The square root of 129515921920 is 359883.2059432615
• The cube root of 129515921920 is 5059.5014001461

Scales and comparisons

• 129,515,921,920 seconds is equal to 4,118 years, 10 weeks, 4 days, 20 hours, 58 minutes, 40 seconds.
• To count from 1 to 129,515,921,920 would take you about eight thousand, two hundred thirty-six 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 129515921920 cubic inches would be around 421.6 feet tall.

Recreational maths with 129515921920

• 129515921920 backwards is 029129515921
• 129515921920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 129515921920's digits is 46
• More coming soon!