Base | Representation |
---|---|
bin | 1010001111001… |
… | …10111101101111 |
3 | 12222121012011012 |
4 | 11013212331233 |
5 | 133441140222 |
6 | 12304415435 |
7 | 2061655004 |
oct | 507467557 |
9 | 188535135 |
10 | 85880687 |
11 | 44528482 |
12 | 2491757b |
13 | 14a3bc99 |
14 | b5978ab |
15 | 78161e2 |
hex | 51e6f6f |
85880687 has 8 divisors (see below), whose sum is σ = 89005440. Its totient is φ = 82766880.
The previous prime is 85880659. The next prime is 85880693. The reversal of 85880687 is 78608858.
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 85880687 - 216 = 85815151 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (85880647) 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, 15362 + ... + 20192.
It is an arithmetic number, because the mean of its divisors is an integer number (11125680).
Almost surely, 285880687 is an apocalyptic number.
85880687 is a deficient number, since it is larger than the sum of its proper divisors (3124753).
85880687 is a wasteful number, since it uses less digits than its factorization.
85880687 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5473.
The product of its (nonzero) digits is 860160, while the sum is 50.
The square root of 85880687 is about 9267.1833369153. The cubic root of 85880687 is about 441.1962745728.
The spelling of 85880687 in words is "eighty-five million, eight hundred eighty thousand, six hundred eighty-seven".
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