Base | Representation |
---|---|
bin | 1010011101000… |
… | …10101110101101 |
3 | 20010000112112000 |
4 | 11032202232231 |
5 | 134422321344 |
6 | 12411402513 |
7 | 2113265214 |
oct | 516425655 |
9 | 203015460 |
10 | 87698349 |
11 | 4555a082 |
12 | 25453439 |
13 | 1522741b |
14 | b90c07b |
15 | 7a74a69 |
hex | 53a2bad |
87698349 has 32 divisors (see below), whose sum is σ = 138777600. Its totient is φ = 54613440.
The previous prime is 87698339. The next prime is 87698353. The reversal of 87698349 is 94389678.
It is not a de Polignac number, because 87698349 - 29 = 87697837 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a junction number, because it is equal to n+sod(n) for n = 87698295 and 87698304.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87698339) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22467 + ... + 26079.
It is an arithmetic number, because the mean of its divisors is an integer number (4336800).
Almost surely, 287698349 is an apocalyptic number.
It is an amenable number.
87698349 is a deficient number, since it is larger than the sum of its proper divisors (51079251).
87698349 is a wasteful number, since it uses less digits than its factorization.
87698349 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3682 (or 3676 counting only the distinct ones).
The product of its digits is 2612736, while the sum is 54.
The square root of 87698349 is about 9364.7396653618. The cubic root of 87698349 is about 444.2872046105.
It can be divided in two parts, 876 and 98349, that added together give a square (99225 = 3152).
The spelling of 87698349 in words is "eighty-seven million, six hundred ninety-eight thousand, three hundred forty-nine".
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