Base | Representation |
---|---|
bin | 1001010001010… |
… | …1111010101111 |
3 | 2201011200001111 |
4 | 2110111322233 |
5 | 34423341322 |
6 | 3505252451 |
7 | 651351301 |
oct | 224257257 |
9 | 81150044 |
10 | 38887087 |
11 | 1aa50498 |
12 | 11034127 |
13 | 8097115 |
14 | 5243971 |
15 | 3632177 |
hex | 2515eaf |
38887087 has 2 divisors, whose sum is σ = 38887088. Its totient is φ = 38887086.
The previous prime is 38887081. The next prime is 38887097. The reversal of 38887087 is 78078883.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-38887087 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 38887087.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (38887081) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19443543 + 19443544.
It is an arithmetic number, because the mean of its divisors is an integer number (19443544).
Almost surely, 238887087 is an apocalyptic number.
38887087 is a deficient number, since it is larger than the sum of its proper divisors (1).
38887087 is an equidigital number, since it uses as much as digits as its factorization.
38887087 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 602112, while the sum is 49.
The square root of 38887087 is about 6235.9511704310. The cubic root of 38887087 is about 338.7935528576.
The spelling of 38887087 in words is "thirty-eight million, eight hundred eighty-seven thousand, eighty-seven".
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