Base | Representation |
---|---|
bin | 1010011011001… |
… | …10100110110111 |
3 | 20002120000201012 |
4 | 11031212212313 |
5 | 134341431322 |
6 | 12402222435 |
7 | 2111221232 |
oct | 515464667 |
9 | 202500635 |
10 | 87452087 |
11 | 45401058 |
12 | 25354a1b |
13 | 1516c2c8 |
14 | b886419 |
15 | 7a26ae2 |
hex | 53669b7 |
87452087 has 2 divisors, whose sum is σ = 87452088. Its totient is φ = 87452086.
The previous prime is 87452069. The next prime is 87452089. The reversal of 87452087 is 78025478.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 87452087 - 212 = 87447991 is a prime.
Together with 87452089, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87452089) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43726043 + 43726044.
It is an arithmetic number, because the mean of its divisors is an integer number (43726044).
Almost surely, 287452087 is an apocalyptic number.
87452087 is a deficient number, since it is larger than the sum of its proper divisors (1).
87452087 is an equidigital number, since it uses as much as digits as its factorization.
87452087 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 125440, while the sum is 41.
The square root of 87452087 is about 9351.5820586679. The cubic root of 87452087 is about 443.8709534202.
The spelling of 87452087 in words is "eighty-seven million, four hundred fifty-two thousand, eighty-seven".
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