Base | Representation |
---|---|
bin | 1010011011101… |
… | …00000000000111 |
3 | 20002122210222012 |
4 | 11031310000013 |
5 | 134400210301 |
6 | 12403324435 |
7 | 2111540210 |
oct | 515640007 |
9 | 202583865 |
10 | 87506951 |
11 | 454392a4 |
12 | 2538071b |
13 | 1518b27c |
14 | b89c407 |
15 | 7a37ebb |
hex | 5374007 |
87506951 has 8 divisors (see below), whose sum is σ = 105271680. Its totient is φ = 71058168.
The previous prime is 87506921. The next prime is 87506977. The reversal of 87506951 is 15960578.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-87506951 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 87506899 and 87506908.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87506921) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328841 + ... + 329106.
It is an arithmetic number, because the mean of its divisors is an integer number (13158960).
Almost surely, 287506951 is an apocalyptic number.
87506951 is a deficient number, since it is larger than the sum of its proper divisors (17764729).
87506951 is a wasteful number, since it uses less digits than its factorization.
87506951 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 657973.
The product of its (nonzero) digits is 75600, while the sum is 41.
The square root of 87506951 is about 9354.5150061347. The cubic root of 87506951 is about 443.9637564090.
The spelling of 87506951 in words is "eighty-seven million, five hundred six thousand, nine hundred fifty-one".
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