155020991856640

Names of 155020991856640

• Cardinal: 155020991856640 can be written as One hundred fifty-five trillion, twenty billion, nine hundred ninety-one million, eight hundred fifty-six thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.5502099185664 × 10¹⁴

Factors of 155020991856640

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 24
• Sum of prime factors: 123

Divisors of 155020991856640

• Number of divisors d(n): 1632
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 17 20 26 28 32 34 35 40 49 52 56 64 65 68 70 79 80 85 91 98 104 112 119 128 130 136 140 158 160 170 182 196 208 221 224 238 245 256 260 272 280 316 320 340 343 364 392 395 416 442 448 455 476 490 512 520 544 553 560 595 632 637 640 680 686 728 784 790 832 833 884 896 910 952 980 1024 1027 1040 1088 1105 1106 1120 1190 1264 1274 1280 1343 1360 1372 1456 1547 1568 1580 1664 1666 1715 1768 1792 1820 1904 1960 2048 2054 2080 2176 2210 2212 2240 2380 2528 2548 2560 2686 2720 2744 2765 2912 3094 3136 3160 3185 3328 3332 3430 3536 3584 3640 3808 3871 3920 4096 4108 4160 4165 4352 4420 4424 4459 4480 4760 5056 5096 5120 5135 5372 5440 5488 5530 5824 5831 6188 6241 6272 6320 6370 6656 6664 6715 6860 7072 7168 7189 7280 7616 7735 7742 7840 8192 8216 8320 8330 8704 8840 8848 8918 8960 9401 9520 10112 10192 10240 10270 10744 10829 10880 10976 11060 11648 11662 12376 12482 12544 12640 12740 13312 13328 13430 13720 14144 14336 14378 14560 15232 15470 15484 15680 16384 16432 16640 16660 17408 17459 17680 17696 17836 17920 18802 19040 19355 20224 20384 20480 20540 21488 21658 21760 21952 22120 22295 23296 23324 24752 24964 25088 25280 25480 26624 26656 26860 27097 27440 28288 28672 28756 29120 29155 30464 30940 30968 31205 31360 32768 32864 33280 33320 34816 34918 35360 35392 35672 35840 35945 37604 38080 38710 40448 40768 40960 41080 42976 43316 43520 43687 43904 44240 44590 46592 46648 47005 49504 49928 50176 50323 50560 50960 53248 53312 53720 54145 54194 54880 56576 57344 57512 58240 58310 60928 61880 61936 62410 62720 65536 65728 65807 66560 66640 69632 69836 70720 70784 71344 71680 71890 75208 75803 76160 77420 80896 81133 81536 81920 82160 85952 86632 87040 87295 87374 87808 88480 89180 93184 93296 94010 99008 99856 100352 100646 101120 101920 106097 106496 106624 107440 108290 108388 109760 113152 114688 115024 116480 116620 121856 122213 123760 123872 124820 125440 131456 131614 133120 133280 135485 139264 139672 141440 141568 142688 143360 143780 150416 151606 152320 154840 161792 162266 163072 163840 164320 171904 173264 174080 174590 174748 175616 176960 178360 186368 186592 188020 198016 199712 200704 201292 202240 203840 212194 212992 213248 214880 216580 216776 218435 219520 226304 229376 230048 232960 233240 243712 244426 247520 247744 249640 250880 251615 262912 263228 266240 266560 270970 278528 279344 282880 283136 285376 286720 287560 300832 303212 304640 305809 309680 323584 324532 326144 327680 328640 329035 343808 346528 348160 349180 349496 351232 352261 353920 356720 372736 373184 376040 379015 396032 399424 401408 402584 404480 405665 407680 424388 425984 426496 429760 433160 433552 436870 439040 452608 458752 460096 460649 465920 466480 487424 488852 495040 495488 499280 501760 503230 525824 526456 530485 532480 533120 541940 557056 558688 565760 566272 567931 570752 573440 575120 601664 606424 609280 611065 611618 619360 647168 649064 652288 657280 658070 687616 693056 696320 698360 698992 702464 704522 707840 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31004198371328 38755247964160 77510495928320 155020991856640
• Sum of all divisors σ(n): 501076673596800
• Sum of proper divisors (its aliquot sum) s(n): 346055681740160
• 155020991856640 is an abundant number, because the sum of its proper divisors (346055681740160) is greater than itself. Its abundance is 191034689883520

Bases of 155020991856640

• Binary: 100011001111110110100011001001110000000000000000₂
• Hexadecimal: 0x8CFDA3270000
• Base-36: 1IY7NS10CG

Squares and roots of 155020991856640

• 155020991856640 squared (155020991856640²) is 24031507916216445194312089600
• 155020991856640 cubed (155020991856640³) is 3725388192982569245867103304328302034944000
• The square root of 155020991856640 is 12450742.6226968485
• The cube root of 155020991856640 is 53719.2784216803

Scales and comparisons

• 155,020,991,856,640 seconds is equal to 4,929,188 years, 1 week, 3 days, 18 hours, 50 minutes, 40 seconds.
• To count from 1 to 155,020,991,856,640 would take you about twelve million, three hundred twenty-two thousand, nine 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 155020991856640 cubic inches would be around 4476.6 feet tall.

Recreational maths with 155020991856640

• 155020991856640 backwards is 046658199020551
• The number of decimal digits it has is: 15
• The sum of 155020991856640's digits is 61
• More coming soon!