6445137920
6,445,137,920 is an even composite number composed of five prime numbers multiplied together.
6445137920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred seventy-two divisors.
Prime factorization of 6445137920:
216 × 5 × 13 × 17 × 89
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 17 × 89)See below for interesting mathematical facts about the number 6445137920 from the Numbermatics database.
Names of 6445137920
- Cardinal: 6445137920 can be written as Six billion, four hundred forty-five million, one hundred thirty-seven thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 6.44513792 × 109
Factors of 6445137920
Divisors of 6445137920
- Number of divisors d(n): 272
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Complete list of divisors:
1 2 4 5 8 10 13 16 17 20 26 32 34 40 52 64 65 68 80 85 89 104 128 130 136 160 170 178 208 221 256 260 272 320 340 356 416 442 445 512 520 544 640 680 712 832 884 890 1024 1040 1088 1105 1157 1280 1360 1424 1513 1664 1768 1780 2048 2080 2176 2210 2314 2560 2720 2848 3026 3328 3536 3560 4096 4160 4352 4420 4628 5120 5440 5696 5785 6052 6656 7072 7120 7565 8192 8320 8704 8840 9256 10240 10880 11392 11570 12104 13312 14144 14240 15130 16384 16640 17408 17680 18512 19669 20480 21760 22784 23140 24208 26624 28288 28480 30260 32768 33280 34816 35360 37024 39338 40960 43520 45568 46280 48416 53248 56576 56960 60520 65536 66560 69632 70720 74048 78676 81920 87040 91136 92560 96832 98345 106496 113152 113920 121040 133120 139264 141440 148096 157352 163840 174080 182272 185120 193664 196690 212992 226304 227840 242080 266240 278528 282880 296192 314704 327680 348160 364544 370240 387328 393380 425984 452608 455680 484160 532480 557056 565760 592384 629408 696320 729088 740480 774656 786760 851968 905216 911360 968320 1064960 1114112 1131520 1184768 1258816 1392640 1458176 1480960 1549312 1573520 1810432 1822720 1936640 2129920 2263040 2369536 2517632 2785280 2916352 2961920 3098624 3147040 3620864 3645440 3873280 4259840 4526080 4739072 5035264 5570560 5832704 5923840 6197248 6294080 7241728 7290880 7746560 9052160 9478144 10070528 11847680 12394496 12588160 14483456 14581760 15493120 18104320 18956288 20141056 23695360 24788992 25176320 29163520 30986240 36208640 37912576 40282112 47390720 49577984 50352640 61972480 72417280 75825152 80564224 94781440 99155968 100705280 123944960 161128448 189562880 201410560 247889920 322256896 379125760 402821120 495779840 644513792 805642240 1289027584 1611284480 3222568960 6445137920
- Sum of all divisors σ(n): 17836141680
- Sum of proper divisors (its aliquot sum) s(n): 11391003760
- 6445137920 is an abundant number, because the sum of its proper divisors (11391003760) is greater than itself. Its abundance is 4945865840
Bases of 6445137920
- Binary: 1100000000010100100000000000000002
- Hexadecimal: 0x180290000
- Base-36: 2YL9O8W
Squares and roots of 6445137920
- 6445137920 squared (64451379202) is 41539802807821926400
- 6445137920 cubed (64451379203) is 267729758266015570448089088000
-
The
square root of 6445137920 is 80281.6163265289 -
The
cube root of 6445137920 is 1860.9901384109
Scales and comparisons
How big is 6445137920?- 6,445,137,920 seconds is equal to 204 years, 48 weeks, 4 days, 12 hours, 5 minutes, 20 seconds.
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To count from 1 to 6,445,137,920 would take you about four hundred nine 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 6445137920 cubic inches would be around 155.1 feet tall.
Recreational maths with 6445137920
- 6445137920 backwards is 0297315446
- The number of decimal digits it has is: 10
- The sum of 6445137920's digits is 41
- More coming soon!
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