18990172716178464

Names of 18990172716178464

• Cardinal: 18990172716178464 can be written as Eighteen quadrillion, nine hundred ninety trillion, one hundred seventy-two billion, seven hundred sixteen million, one hundred seventy-eight thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 1.8990172716178464 × 10¹⁶

Factors of 18990172716178464

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 2683112

Divisors of 18990172716178464

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 432 648 757 864 1296 1514 2271 2592 3028 3613 4542 6056 6813 7226 9084 10839 12112 13626 14452 18168 20439 21678 24224 27252 28904 32517 36336 40878 43356 54504 57808 61317 65034 72672 81756 86712 97551 109008 115616 122634 130068 163512 173424 195102 218016 245268 260136 292653 327024 346848 390204 490536 520272 585306 654048 780408 981072 1040544 1170612 1560816 1962144 2341224 2678737 2735041 3121632 4682448 5357474 5470082 8036211 8205123 9364896 10714948 10940164 16072422 16410246 21429896 21880328 24108633 24615369 32144844 32820492 42859792 43760656 48217266 49230738 64289688 65640984 72325899 73846107 85719584 87521312 96434532 98461476 128579376 131281968 144651798 147692214 192869064 196922952 216977697 221538321 257158752 262563936 289303596 295384428 385738128 393845904 433955394 443076642 578607192 590768856 771476256 787691808 867910788 886153284 1157214384 1181537712 1735821576 1772306568 2027803909 2314428768 2363075424 3471643152 3544613136 4055607818 6083411727 6943286304 7089226272 8111215636 9678276781 12166823454 16222431272 18250235181 19356553562 24333646908 29034830343 32444862544 36500470362 38713107124 48667293816 54750705543 58069660686 64889725088 73000940724 77426214248 87104491029 97334587632 109501411086 116139321372 146001881448 154852428496 164252116629 174208982058 194669175264 219002822172 232278642744 261313473087 292003762896 309704856992 328504233258 348417964116 438005644344 464557285488 522626946174 584007525792 657008466516 696835928232 783940419261 876011288688 929114570976 1045253892348 1314016933032 1393671856464 1567880838522 1752022577376 2090507784696 2628033866064 2787343712928 3135761677044 4181015569392 5256067732128 6271523354088 7326455523217 8362031138784 12543046708176 14652911046434 21979366569651 25086093416352 29305822092868 43958733139302 58611644185736 65938099708953 87917466278604 117223288371472 131876199417906 175834932557208 197814299126859 234446576742944 263752398835812 351669865114416 395628598253718 527504797671624 593442897380577 703339730228832 791257196507436 1055009595343248 1186885794761154 1582514393014872 2110019190686496 2373771589522308 3165028786029744 4747543179044616 6330057572059488 9495086358089232 18990172716178464
• Sum of all divisors σ(n): 55938847209132888
• Sum of proper divisors (its aliquot sum) s(n): 36948674492954424
• 18990172716178464 is an abundant number, because the sum of its proper divisors (36948674492954424) is greater than itself. Its abundance is 17958501776775960

Bases of 18990172716178464

• Binary: 1000011011101110111011000100010111110001001110000100000₂
• Hexadecimal: 0x43777622F89C20
• Base-36: 56ZGCWRHE00

Squares and roots of 18990172716178464

• 18990172716178464 squared (18990172716178464²) is 360626659790288941023208297399296
• 18990172716178464 cubed (18990172716178464³) is 6848362555476118205788277457627690502395003961344
• The square root of 18990172716178464 is 137804835.6052082231
• The cube root of 18990172716178464 is 266794.1514287851

Scales and comparisons

• 18,990,172,716,178,464 seconds is equal to 603,828,751 years, 47 weeks, 3 days, 12 hours, 14 minutes, 24 seconds.
• To count from 1 to 18,990,172,716,178,464 would take you about one billion, eight hundred eleven million, four hundred eighty-six thousand, two hundred fifty-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 18990172716178464 cubic inches would be around 22232.8 feet tall.

Recreational maths with 18990172716178464

• 18990172716178464 backwards is 46487161727109981
• 18990172716178464 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 18990172716178464's digits is 81
• More coming soon!