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38934305487 = 327211194110303
BaseRepresentation
bin100100010000101010…
…100101101011001111
310201111101202122110100
4210100222211223033
51114214140233422
625515225142143
72545554064500
oct442052455317
9121441678410
1038934305487
111556a444a80
12766702a953
1338963534ac
141c54c3cba7
15102d17a7ac
hex910aa5acf

38934305487 has 144 divisors (see below), whose sum is σ = 76963461120. Its totient is φ = 18691948800.

The previous prime is 38934305477. The next prime is 38934305491. The reversal of 38934305487 is 78450343983.

38934305487 is a `hidden beast` number, since 3 + 8 + 93 + 4 + 3 + 0 + 548 + 7 = 666.

It is not a de Polignac number, because 38934305487 - 211 = 38934303439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38934305477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3773778 + ... + 3784080.

It is an arithmetic number, because the mean of its divisors is an integer number (534468480).

Almost surely, 238934305487 is an apocalyptic number.

38934305487 is a deficient number, since it is larger than the sum of its proper divisors (38029155633).

38934305487 is a wasteful number, since it uses less digits than its factorization.

38934305487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10394 (or 10384 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 38934305487 in words is "thirty-eight billion, nine hundred thirty-four million, three hundred five thousand, four hundred eighty-seven".

Divisors: 1 3 7 9 11 19 21 33 41 49 57 63 77 99 123 133 147 171 209 231 287 369 399 441 451 539 627 693 779 861 931 1197 1353 1463 1617 1881 2009 2337 2583 2793 3157 4059 4389 4851 5453 6027 7011 8379 8569 9471 10241 10303 13167 16359 18081 22099 25707 28413 30723 30909 38171 49077 59983 66297 72121 77121 92169 92727 113333 114513 179949 195757 198891 216363 339999 343539 419881 422423 504847 539847 587271 649089 793331 1019997 1259643 1267269 1370299 1514541 1761813 2153327 2379993 2956961 3778929 3801807 4110897 4543623 4646653 5553317 6459981 7139979 8026037 8870883 9592093 12332691 13939959 15073289 16659951 19379943 20698727 24078111 26612649 28776279 32526571 41819877 45219867 49979853 56182259 62096181 72234333 86328837 88286407 97579713 105513023 135659601 168546777 186288543 227685997 264859221 292739139 316539069 393275813 505640331 618004849 683057991 794577663 949617207 1179827439 1854014547 2049173973 3539482317 4326033943 5562043641 12978101829 38934305487