Base | Representation |
---|---|
bin | 1010011110000… |
… | …11111001011111 |
3 | 20010021102212210 |
4 | 11033003321133 |
5 | 134441143312 |
6 | 12414331503 |
7 | 2114402256 |
oct | 517037137 |
9 | 203242783 |
10 | 87834207 |
11 | 4564215a |
12 | 254b9b93 |
13 | 15274206 |
14 | b94579d |
15 | 7a9ee3c |
hex | 53c3e5f |
87834207 has 16 divisors (see below), whose sum is σ = 123743360. Its totient is φ = 55264032.
The previous prime is 87834199. The next prime is 87834221. The reversal of 87834207 is 70243878.
It is not a de Polignac number, because 87834207 - 23 = 87834199 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87834277) 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 15 ways as a sum of consecutive naturals, for example, 13008 + ... + 18570.
It is an arithmetic number, because the mean of its divisors is an integer number (7733960).
Almost surely, 287834207 is an apocalyptic number.
87834207 is a deficient number, since it is larger than the sum of its proper divisors (35909153).
87834207 is a wasteful number, since it uses less digits than its factorization.
87834207 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5862.
The product of its (nonzero) digits is 75264, while the sum is 39.
The square root of 87834207 is about 9371.9905569735. The cubic root of 87834207 is about 444.5165089233.
The spelling of 87834207 in words is "eighty-seven million, eight hundred thirty-four thousand, two hundred seven".
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