Base | Representation |
---|---|
bin | 1010011010011… |
… | …01110001110001 |
3 | 20002100212012110 |
4 | 11031031301301 |
5 | 134330203020 |
6 | 12400115533 |
7 | 2110315563 |
oct | 515156161 |
9 | 202325173 |
10 | 87350385 |
11 | 45341701 |
12 | 25305ba9 |
13 | 15134c25 |
14 | b85b333 |
15 | 7a068e0 |
hex | 534dc71 |
87350385 has 32 divisors (see below), whose sum is σ = 143856000. Its totient is φ = 45241856.
The previous prime is 87350381. The next prime is 87350387. The reversal of 87350385 is 58305378.
It is a cyclic number.
It is not a de Polignac number, because 87350385 - 22 = 87350381 is a prime.
It is not an unprimeable number, because it can be changed into a prime (87350381) 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, 78211 + ... + 79319.
It is an arithmetic number, because the mean of its divisors is an integer number (4495500).
Almost surely, 287350385 is an apocalyptic number.
It is an amenable number.
87350385 is a deficient number, since it is larger than the sum of its proper divisors (56505615).
87350385 is a wasteful number, since it uses less digits than its factorization.
87350385 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1265.
The product of its (nonzero) digits is 100800, while the sum is 39.
The square root of 87350385 is about 9346.1427872679. The cubic root of 87350385 is about 443.6988207854.
The spelling of 87350385 in words is "eighty-seven million, three hundred fifty thousand, three hundred eighty-five".
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