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86881271 = 1731116433
BaseRepresentation
bin1010010110110…
…11001111110111
320001111000200212
411023123033313
5134220200041
612342100035
72103323111
oct513331767
9201430625
1086881271
1145051204
122511a61b
1314ccc549
14b7783b1
1579628eb
hex52db3f7

86881271 has 8 divisors (see below), whose sum is σ = 92293344. Its totient is φ = 81502720.

The previous prime is 86881259. The next prime is 86881279. The reversal of 86881271 is 17218868.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-86881271 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 (86881279) 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, 2930 + ... + 13503.

It is an arithmetic number, because the mean of its divisors is an integer number (11536668).

Almost surely, 286881271 is an apocalyptic number.

86881271 is a deficient number, since it is larger than the sum of its proper divisors (5412073).

86881271 is a wasteful number, since it uses less digits than its factorization.

86881271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16761.

The product of its digits is 43008, while the sum is 41.

The square root of 86881271 is about 9321.0123377238. The cubic root of 86881271 is about 442.9031018801.

The spelling of 86881271 in words is "eighty-six million, eight hundred eighty-one thousand, two hundred seventy-one".

Divisors: 1 17 311 5287 16433 279361 5110663 86881271