398644666420

Names of 398644666420

• Cardinal: 398644666420 can be written as Three hundred ninety-eight billion, six hundred forty-four million, six hundred sixty-six thousand, four hundred twenty.

Scientific notation

• Scientific notation: 3.9864466642 × 10¹¹

Factors of 398644666420

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 8246

Divisors of 398644666420

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 4 5 7 10 11 13 14 17 20 22 26 28 34 35 44 52 55 65 68 70 77 85 91 110 119 121 130 140 143 154 169 170 182 187 220 221 238 242 260 286 308 338 340 364 374 385 442 455 476 484 572 595 605 676 715 748 770 845 847 884 910 935 1001 1105 1183 1190 1210 1309 1430 1540 1547 1573 1690 1694 1820 1859 1870 2002 2057 2210 2366 2380 2420 2431 2618 2860 2873 3094 3146 3380 3388 3718 3740 4004 4114 4235 4420 4732 4862 5005 5236 5746 5915 6188 6292 6545 7436 7735 7865 8191 8228 8470 9295 9724 10010 10285 11011 11492 11830 12155 13013 13090 14365 14399 15470 15730 16382 16940 17017 18590 20020 20111 20449 20570 22022 23660 24310 26026 26180 26741 28730 28798 30940 31460 31603 32764 34034 37180 40222 40898 40955 41140 44044 48620 52052 53482 55055 57337 57460 57596 63206 65065 68068 71995 80444 81796 81910 85085 90101 100555 102245 106483 106964 110110 114674 126412 130130 133705 139247 143143 143990 158015 163820 170170 180202 187187 201110 204490 212966 220220 221221 229348 260260 267410 278494 286286 286685 287980 316030 340340 347633 360404 374374 402220 408980 425932 442442 450505 532415 534820 556988 572572 573370 630707 632060 695266 696235 715715 745381 748748 884884 901010 935935 974729 991111 1064830 1106105 1146740 1171313 1261414 1384279 1390532 1392470 1431430 1490762 1531717 1738165 1802020 1810211 1871870 1949458 1982222 2129660 2212210 2342626 2433431 2522828 2768558 2784940 2862860 2981524 3063434 3153535 3476330 3620422 3726905 3743740 3898916 3964444 4424420 4685252 4866862 4873645 4955555 5537116 5856565 6126868 6307070 6921395 6937777 6952660 7240844 7453810 7658585 8199191 9051055 9689953 9733724 9747290 9911110 10722019 11713130 12167155 12614140 12671477 12884443 13842790 13875554 14907620 15227069 15317170 16398382 16848887 18102110 19379906 19494580 19822220 19912321 21444038 23426260 23532743 24334310 25342954 25768886 27685580 27751108 30454138 30634340 32796764 33697774 34688885 36204220 38759812 39824642 40995955 42888076 47065486 48449765 48668620 50685908 51537772 53610095 60908276 63357385 64422215 67395548 69377770 76135345 79649284 81991910 84244435 90191101 94130972 96899530 99561605 106589483 107220190 117663715 117942209 126714770 128844430 138755540 139386247 152270690 163983820 164729201 167497759 168488870 180382202 193799060 199123210 213178966 214440380 219035531 235327430 235884418 253429540 257688860 258860173 278772494 304541380 329458402 334995518 336977740 360764404 398246420 426357932 438071062 450955505 470654860 471768836 517720346 532947415 557544988 589711045 658916804 669991036 696931235 823646005 837488795 876142124 901911010 1035440692 1065894830 1095177655 1172484313 1179422090 1294300865 1393862470 1533248717 1647292010 1674977590 1803822020 1812021211 2131789660 2190355310 2344968626 2358844180 2588601730 2787724940 2847461903 3066497434 3294584020 3349955180 3624042422 4380710620 4689937252 5177203460 5694923806 5862421565 6132994868 7248084844 7666243585 9060106055 11389847612 11724843130 14237309515 15332487170 18120212110 19932233321 23449686260 28474619030 30664974340 36240424220 39864466642 56949238060 79728933284 99661166605 199322333210 398644666420
• Sum of all divisors σ(n): 1205881012224
• Sum of proper divisors (its aliquot sum) s(n): 807236345804
• 398644666420 is an abundant number, because the sum of its proper divisors (807236345804) is greater than itself. Its abundance is 408591679384

Bases of 398644666420

• Binary: 101110011010001000100101110000000110100₂
• Hexadecimal: 0x5CD112E034
• Base-36: 534UQP84

Squares and roots of 398644666420

• 398644666420 squared (398644666420²) is 158917570065113075616400
• 398644666420 cubed (398644666420³) is 63351641706883979708680013881288000
• The square root of 398644666420 is 631383.1375797107
• The cube root of 398644666420 is 7359.7317611805

Scales and comparisons

• 398,644,666,420 seconds is equal to 12,675 years, 34 weeks, 4 days, 21 hours, 33 minutes, 40 seconds.
• To count from 1 to 398,644,666,420 would take you about twenty-five thousand, three hundred fifty-one 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 398644666420 cubic inches would be around 613.3 feet tall.

Recreational maths with 398644666420

• 398644666420 backwards is 024666446893
• The number of decimal digits it has is: 12
• The sum of 398644666420's digits is 58
• More coming soon!