Base | Representation |
---|---|
bin | 1010011001010… |
… | …10111011011001 |
3 | 20002002121101122 |
4 | 11030222323121 |
5 | 134311121031 |
6 | 12353055025 |
7 | 2106152453 |
oct | 514527331 |
9 | 202077348 |
10 | 87207641 |
11 | 45254434 |
12 | 25257475 |
13 | 150b4c71 |
14 | b8212d3 |
15 | 79c947b |
hex | 532aed9 |
87207641 has 8 divisors (see below), whose sum is σ = 87851904. Its totient is φ = 86566320.
The previous prime is 87207599. The next prime is 87207647. The reversal of 87207641 is 14670278.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 87207641 - 214 = 87191257 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87207647) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107126 + ... + 107936.
It is an arithmetic number, because the mean of its divisors is an integer number (10981488).
Almost surely, 287207641 is an apocalyptic number.
It is an amenable number.
87207641 is a deficient number, since it is larger than the sum of its proper divisors (644263).
87207641 is a wasteful number, since it uses less digits than its factorization.
87207641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1471.
The product of its (nonzero) digits is 18816, while the sum is 35.
The square root of 87207641 is about 9338.5031455796. The cubic root of 87207641 is about 443.4569982460.
It can be divided in two parts, 8720 and 7641, that added together give a palindrome (16361).
The spelling of 87207641 in words is "eighty-seven million, two hundred seven thousand, six hundred forty-one".
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