155388053492878752

Names of 155388053492878752

• Cardinal: 155388053492878752 can be written as One hundred fifty-five quadrillion, three hundred eighty-eight trillion, fifty-three billion, four hundred ninety-two million, eight hundred seventy-eight thousand, seven hundred fifty-two.

Scientific notation

• Scientific notation: 1.55388053492878752 × 10¹⁷

Factors of 155388053492878752

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 191259075705

Divisors of 155388053492878752

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 31 32 36 39 42 48 52 56 62 63 72 78 84 91 93 96 104 112 117 124 126 144 156 168 182 186 208 217 224 234 248 252 273 279 288 312 336 364 372 403 416 434 468 496 504 546 558 624 651 672 728 744 806 819 868 936 992 1008 1092 1116 1209 1248 1302 1456 1488 1612 1638 1736 1872 1953 2016 2184 2232 2418 2604 2821 2912 2976 3224 3276 3472 3627 3744 3906 4368 4464 4836 5208 5642 6448 6552 6944 7254 7812 8463 8736 8928 9672 10416 11284 12896 13104 14508 15624 16926 19344 20832 22568 25389 26208 29016 31248 33852 38688 45136 50778 58032 62496 67704 90272 101556 116064 135408 203112 270816 406224 812448 191259075649 382518151298 573777226947 765036302596 1147554453894 1338813529543 1530072605192 1721331680841 2295108907788 2486367983437 2677627059086 3060145210384 3442663361682 4016440588629 4590217815576 4972735966874 5355254118172 5929031345119 6120290420768 6885326723364 7459103950311 8032881177258 9180435631152 9945471933748 10710508236344 11858062690238 12049321765887 13770653446728 14918207900622 16065762354516 17404575884059 17787094035357 18360871262304 19890943867496 21421016472688 22377311850933 23716125380476 24098643531774 27541306893456 29836415801244 32131524709032 34809151768118 35574188070714 39781887734992 41503219415833 42842032945376 44754623701866 47432250760952 48197287063548 52213727652177 53361282106071 55082613786912 59672831602488 64263049418064 69618303536236 71148376141428 77077407486547 79563775469984 83006438831666 89509247403732 94864501521904 96394574127096 104427455304354 106722564212142 119345663204976 124509658247499 128526098836128 139236607072472 142296752282856 154154814973094 156641182956531 166012877663332 179018494807464 189729003043808 192789148254192 208854910608708 213445128424284 231232222459641 238691326409952 249019316494998 278473214144944 284593504565712 308309629946188 313282365913062 332025755326664 358036989614928 373528974742497 385578296508384 417709821217416 426890256848568 462464444919282 498038632989996 539541852405829 556946428289888 569187009131424 616619259892376 626564731826124 664051510653328 693696667378923 716073979229856 747057949484994 835419642434832 853780513697136 924928889838564 996077265979992 1079083704811658 1233238519784752 1253129463652248 1328103021306656 1387393334757846 1494115898969988 1618625557217487 1670839284869664 1707561027394272 1849857779677128 1992154531959984 2158167409623316 2466477039569504 2506258927304496 2774786669515692 2988231797939976 3237251114434974 3699715559354256 3984309063919968 4316334819246632 4855876671652461 5012517854608992 5549573339031384 5976463595879952 6474502228869948 7399431118708512 8632669638493264 9711753343304922 11099146678062768 11952927191759904 12949004457739896 17265339276986528 19423506686609844 22198293356125536 25898008915479792 38847013373219688 51796017830959584 77694026746439376 155388053492878752
• Sum of all divisors σ(n): 561401999719142400
• Sum of proper divisors (its aliquot sum) s(n): 406013946226263648
• 155388053492878752 is an abundant number, because the sum of its proper divisors (406013946226263648) is greater than itself. Its abundance is 250625892733384896

Bases of 155388053492878752

• Binary: 1000101000000011001001110010000010110010000100110110100000₂
• Hexadecimal: 0x2280C9C82C84DA0
• Base-36: 16I0GUAX0DK0

Squares and roots of 155388053492878752

• 155388053492878752 squared (155388053492878752²) is 24145447168305748519629176173077504
• 155388053492878752 cubed (155388053492878752³) is 3751914036198171437969281252309180219634288170795008
• The square root of 155388053492878752 is 394192914.0571640869
• The cube root of 155388053492878752 is 537616.4417556729

Scales and comparisons

• 155,388,053,492,878,752 seconds is equal to 4,940,859,454 years, 13 weeks, 5 days, 18 hours, 19 minutes, 12 seconds.
• To count from 1 to 155,388,053,492,878,752 would take you about fourteen billion, eight hundred twenty-two million, five hundred seventy-eight thousand, three hundred sixty-two 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 155388053492878752 cubic inches would be around 44801.4 feet tall.

Recreational maths with 155388053492878752

• 155388053492878752 backwards is 257878294350883551
• The number of decimal digits it has is: 18
• The sum of 155388053492878752's digits is 90
• More coming soon!