Base | Representation |
---|---|
bin | 1010011000011… |
… | …10111111011101 |
3 | 20001212210102120 |
4 | 11030032333131 |
5 | 134243440323 |
6 | 12350413153 |
7 | 2105165034 |
oct | 514167735 |
9 | 201783376 |
10 | 87093213 |
11 | 45186469 |
12 | 252011b9 |
13 | 15074b5c |
14 | b7d171b |
15 | 79a55e3 |
hex | 530efdd |
87093213 has 8 divisors (see below), whose sum is σ = 116251968. Its totient is φ = 57998304.
The previous prime is 87093211. The next prime is 87093221. The reversal of 87093213 is 31239078.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 87093213 - 21 = 87093211 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87093211) 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 7 ways as a sum of consecutive naturals, for example, 12681 + ... + 18302.
It is an arithmetic number, because the mean of its divisors is an integer number (14531496).
Almost surely, 287093213 is an apocalyptic number.
It is an amenable number.
87093213 is a deficient number, since it is larger than the sum of its proper divisors (29158755).
87093213 is a wasteful number, since it uses less digits than its factorization.
87093213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 31923.
The product of its (nonzero) digits is 9072, while the sum is 33.
The square root of 87093213 is about 9332.3744566964. The cubic root of 87093213 is about 443.2629552041.
The spelling of 87093213 in words is "eighty-seven million, ninety-three thousand, two hundred thirteen".
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