Base | Representation |
---|---|
bin | 1010011111010… |
… | …00110100111001 |
3 | 20010120010100221 |
4 | 11033220310321 |
5 | 140011013330 |
6 | 12421500041 |
7 | 2115602251 |
oct | 517506471 |
9 | 203503327 |
10 | 87985465 |
11 | 45735867 |
12 | 25571621 |
13 | 152c8009 |
14 | b984961 |
15 | 7aceb7a |
hex | 53e8d39 |
87985465 has 8 divisors (see below), whose sum is σ = 110173248. Its totient is φ = 67327920.
The previous prime is 87985463. The next prime is 87985477. The reversal of 87985465 is 56458978.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 87985465 - 21 = 87985463 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87985463) 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, 382431 + ... + 382660.
It is an arithmetic number, because the mean of its divisors is an integer number (13771656).
Almost surely, 287985465 is an apocalyptic number.
It is an amenable number.
87985465 is a deficient number, since it is larger than the sum of its proper divisors (22187783).
87985465 is a wasteful number, since it uses less digits than its factorization.
87985465 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 765119.
The product of its digits is 2419200, while the sum is 52.
The square root of 87985465 is about 9380.0567695510. The cubic root of 87985465 is about 444.7715277120.
The spelling of 87985465 in words is "eighty-seven million, nine hundred eighty-five thousand, four hundred sixty-five".
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