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87230706233856 = 2932311321851029
BaseRepresentation
bin10011110101010111111011…
…010000100011001000000000
3102102212011200220021222121020
4103311113323100203020000
542413141441243440411
6505305122213225440
724242132135040333
oct2365277320431000
9372764626258536
1087230706233856
1125881375629659
129949a8b032280
133989a88284753
141777dbb03461a
15a1410e1da606
hex4f55fb423200

87230706233856 has 160 divisors (see below), whose sum is σ = 244637838783360. Its totient is φ = 27566557691904.

The previous prime is 87230706233843. The next prime is 87230706233873. The reversal of 87230706233856 is 65833260703278.

It is a super-2 number, since 2×872307062338562 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87230706233856.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6933451 + ... + 14917578.

It is an arithmetic number, because the mean of its divisors is an integer number (1528986492396).

Almost surely, 287230706233856 is an apocalyptic number.

It is an amenable number.

87230706233856 is an abundant number, since it is smaller than the sum of its proper divisors (157407132549504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87230706233856 is a wasteful number, since it uses less digits than its factorization.

87230706233856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21851186 (or 21851170 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 60.

The spelling of 87230706233856 in words is "eighty-seven trillion, two hundred thirty billion, seven hundred six million, two hundred thirty-three thousand, eight hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 64 69 92 96 113 128 138 184 192 226 256 276 339 368 384 452 512 552 678 736 768 904 1104 1356 1472 1536 1808 2208 2599 2712 2944 3616 4416 5198 5424 5888 7232 7797 8832 10396 10848 11776 14464 15594 17664 20792 21696 28928 31188 35328 41584 43392 57856 62376 83168 86784 124752 166336 173568 249504 332672 499008 665344 998016 1330688 1996032 3992064 21851029 43702058 65553087 87404116 131106174 174808232 262212348 349616464 502573667 524424696 699232928 1005147334 1048849392 1398465856 1507721001 2010294668 2097698784 2469166277 2796931712 3015442002 4020589336 4195397568 4938332554 5593863424 6030884004 7407498831 8041178672 8390795136 9876665108 11187726848 12061768008 14814997662 16082357344 16781590272 19753330216 24123536016 29629995324 32164714688 33563180544 39506660432 48247072032 56790824371 59259990648 64329429376 79013320864 96494144064 113581648742 118519981296 128658858752 158026641728 170372473113 192988288128 227163297484 237039962592 257317717504 316053283456 340744946226 385976576256 454326594968 474079925184 632106566912 681489892452 771953152512 908653189936 948159850368 1264213133824 1362979784904 1817306379872 1896319700736 2725959569808 3634612759744 3792639401472 5451919139616 7269225519488 10903838279232 14538451038976 21807676558464 29076902077952 43615353116928 87230706233856