Base | Representation |
---|---|
bin | 100100010000101010… |
… | …100101101011001111 |
3 | 10201111101202122110100 |
4 | 210100222211223033 |
5 | 1114214140233422 |
6 | 25515225142143 |
7 | 2545554064500 |
oct | 442052455317 |
9 | 121441678410 |
10 | 38934305487 |
11 | 1556a444a80 |
12 | 766702a953 |
13 | 38963534ac |
14 | 1c54c3cba7 |
15 | 102d17a7ac |
hex | 910aa5acf |
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".
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