21554921472

Names of 21554921472

• Cardinal: 21554921472 can be written as Twenty-one billion, five hundred fifty-four million, nine hundred twenty-one thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 2.1554921472 × 10¹⁰

Factors of 21554921472

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 21
• Sum of prime factors: 244

Divisors of 21554921472

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 41 42 48 56 64 82 84 96 112 123 128 164 168 191 192 224 246 256 287 328 336 382 384 448 492 512 573 574 656 672 764 768 861 896 984 1024 1146 1148 1312 1337 1344 1528 1536 1722 1792 1968 2048 2292 2296 2624 2674 2688 3056 3072 3444 3584 3936 4011 4096 4584 4592 5248 5348 5376 6112 6144 6888 7168 7831 7872 8022 8192 9168 9184 10496 10696 10752 12224 12288 13776 14336 15662 15744 16044 16384 18336 18368 20992 21392 21504 23493 24448 24576 27552 28672 31324 31488 32088 32768 36672 36736 41984 42784 43008 46986 48896 49152 54817 55104 57344 62648 62976 64176 65536 73344 73472 83968 85568 86016 93972 97792 98304 109634 110208 114688 125296 125952 128352 131072 146688 146944 164451 167936 171136 172032 187944 195584 196608 219268 220416 229376 250592 251904 256704 293376 293888 328902 335872 342272 344064 375888 391168 393216 438536 440832 458752 501184 503808 513408 586752 587776 657804 671744 684544 688128 751776 782336 877072 881664 917504 1002368 1007616 1026816 1173504 1175552 1315608 1343488 1369088 1376256 1503552 1564672 1754144 1763328 2004736 2015232 2053632 2347008 2351104 2631216 2686976 2738176 2752512 3007104 3129344 3508288 3526656 4009472 4030464 4107264 4694016 4702208 5262432 5373952 5476352 6014208 6258688 7016576 7053312 8018944 8060928 8214528 9388032 9404416 10524864 10952704 12028416 12517376 14033152 14106624 16037888 16121856 16429056 18776064 18808832 21049728 21905408 24056832 25034752 28066304 28213248 32075776 32858112 37552128 37617664 42099456 43810816 48113664 56132608 56426496 64151552 65716224 75104256 84198912 87621632 96227328 112265216 112852992 128303104 131432448 168397824 175243264 192454656 224530432 256606208 262864896 336795648 384909312 449060864 513212416 525729792 673591296 769818624 898121728 1026424832 1347182592 1539637248 1796243456 2694365184 3079274496 3592486912 5388730368 7184973824 10777460736 21554921472
• Sum of all divisors σ(n): 67645476864
• Sum of proper divisors (its aliquot sum) s(n): 46090555392
• 21554921472 is an abundant number, because the sum of its proper divisors (46090555392) is greater than itself. Its abundance is 24535633920

Bases of 21554921472

• Binary: 10100000100110001100000000000000000₂
• Hexadecimal: 0x504C60000
• Base-36: 9WH8RUO

Squares and roots of 21554921472

• 21554921472 squared (21554921472²) is 464614639664086646784
• 21554921472 cubed (21554921472³) is 10014732072700964130032921346048
• The square root of 21554921472 is 146815.9442022561
• The cube root of 21554921472 is 2783.0145805609

Scales and comparisons

• 21,554,921,472 seconds is equal to 685 years, 19 weeks, 5 days, 6 hours, 11 minutes, 12 seconds.
• To count from 1 to 21,554,921,472 would take you about one thousand, three hundred seventy 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 21554921472 cubic inches would be around 231.9 feet tall.

Recreational maths with 21554921472

• 21554921472 backwards is 27412945512
• 21554921472 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21554921472's digits is 42
• More coming soon!