21390950400

Names of 21390950400

• Cardinal: 21390950400 can be written as Twenty-one billion, three hundred ninety million, nine hundred fifty thousand, four hundred.

Scientific notation

• Scientific notation: 2.13909504 × 10¹⁰

Factors of 21390950400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 28
• Sum of prime factors: 27

Divisors of 21390950400

• Number of divisors d(n): 300
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 17 20 24 25 30 32 34 40 48 50 51 60 64 68 75 80 85 96 100 102 120 128 136 150 160 170 192 200 204 240 255 256 272 300 320 340 384 400 408 425 480 510 512 544 600 640 680 768 800 816 850 960 1020 1024 1088 1200 1275 1280 1360 1536 1600 1632 1700 1920 2040 2048 2176 2400 2550 2560 2720 3072 3200 3264 3400 3840 4080 4096 4352 4800 5100 5120 5440 6144 6400 6528 6800 7680 8160 8192 8704 9600 10200 10240 10880 12288 12800 13056 13600 15360 16320 16384 17408 19200 20400 20480 21760 24576 25600 26112 27200 30720 32640 32768 34816 38400 40800 40960 43520 49152 51200 52224 54400 61440 65280 65536 69632 76800 81600 81920 87040 98304 102400 104448 108800 122880 130560 131072 139264 153600 163200 163840 174080 196608 204800 208896 217600 245760 261120 262144 278528 307200 326400 327680 348160 393216 409600 417792 435200 491520 522240 524288 557056 614400 652800 655360 696320 786432 819200 835584 870400 983040 1044480 1048576 1114112 1228800 1305600 1310720 1392640 1572864 1638400 1671168 1740800 1966080 2088960 2097152 2228224 2457600 2611200 2621440 2785280 3145728 3276800 3342336 3481600 3932160 4177920 4194304 4456448 4915200 5222400 5242880 5570560 6291456 6553600 6684672 6963200 7864320 8355840 8388608 8912896 9830400 10444800 10485760 11141120 12582912 13107200 13369344 13926400 15728640 16711680 16777216 17825792 19660800 20889600 20971520 22282240 25165824 26214400 26738688 27852800 31457280 33423360 35651584 39321600 41779200 41943040 44564480 50331648 52428800 53477376 55705600 62914560 66846720 71303168 78643200 83558400 83886080 89128960 104857600 106954752 111411200 125829120 133693440 142606336 157286400 167116800 178257920 209715200 213909504 222822400 251658240 267386880 285212672 314572800 334233600 356515840 419430400 427819008 445644800 534773760 629145600 668467200 713031680 855638016 891289600 1069547520 1258291200 1336934400 1426063360 1782579200 2139095040 2673868800 3565158400 4278190080 5347737600 7130316800 10695475200 21390950400
• Sum of all divisors σ(n): 74893489992
• Sum of proper divisors (its aliquot sum) s(n): 53502539592
• 21390950400 is an abundant number, because the sum of its proper divisors (53502539592) is greater than itself. Its abundance is 32111589192

Bases of 21390950400

• Binary: 10011111011000000000000000000000000₂
• Hexadecimal: 0x4FB000000
• Base-36: 9TRMAYO

Squares and roots of 21390950400

• 21390950400 squared (21390950400²) is 457572759015260160000
• 21390950400 cubed (21390950400³) is 9787916192486582925656064000000
• The square root of 21390950400 is 146256.4542165575
• The cube root of 21390950400 is 2775.9396931203

Scales and comparisons

• 21,390,950,400 seconds is equal to 680 years, 8 weeks, 4 days, 10 hours, 40 minutes.
• To count from 1 to 21,390,950,400 would take you about one thousand, three hundred sixty 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 21390950400 cubic inches would be around 231.3 feet tall.

Recreational maths with 21390950400

• 21390950400 backwards is 00405909312
• The number of decimal digits it has is: 11
• The sum of 21390950400's digits is 33
• More coming soon!