Base | Representation |
---|---|
bin | 10011000001100111111001 |
3 | 100101101101222 |
4 | 103001213321 |
5 | 2234044020 |
6 | 254521425 |
7 | 60251324 |
oct | 23014771 |
9 | 10341358 |
10 | 4987385 |
11 | 28a7107 |
12 | 1806275 |
13 | 1058120 |
14 | 93b7bb |
15 | 687b25 |
hex | 4c19f9 |
4987385 has 12 divisors (see below), whose sum is σ = 6468588. Its totient is φ = 3669696.
The previous prime is 4987351. The next prime is 4987393. The reversal of 4987385 is 5837894.
It can be written as a sum of positive squares in 6 ways, for example, as 1700416 + 3286969 = 1304^2 + 1813^2 .
It is not a de Polignac number, because 4987385 - 26 = 4987321 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17867 + ... + 18143.
It is an arithmetic number, because the mean of its divisors is an integer number (539049).
Almost surely, 24987385 is an apocalyptic number.
It is an amenable number.
4987385 is a deficient number, since it is larger than the sum of its proper divisors (1481203).
4987385 is an equidigital number, since it uses as much as digits as its factorization.
4987385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 572 (or 295 counting only the distinct ones).
The product of its digits is 241920, while the sum is 44.
The square root of 4987385 is about 2233.2453962787. The cubic root of 4987385 is about 170.8536645774.
The spelling of 4987385 in words is "four million, nine hundred eighty-seven thousand, three hundred eighty-five".
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