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86710401 = 3214964661
BaseRepresentation
bin1010010101100…
…01100010000001
320001011100022100
411022301202001
5134144213101
612334301013
72102012001
oct512614201
9201140270
1086710401
1144a44898
1225057769
1314c6c83b
14b732001
15792be86
hex52b1881

86710401 has 12 divisors (see below), whose sum is σ = 126090900. Its totient is φ = 57418080.

The previous prime is 86710399. The next prime is 86710411. The reversal of 86710401 is 10401768.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4626801 + 82083600 = 2151^2 + 9060^2 .

It is not a de Polignac number, because 86710401 - 21 = 86710399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86710411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30990 + ... + 33671.

It is an arithmetic number, because the mean of its divisors is an integer number (10507575).

Almost surely, 286710401 is an apocalyptic number.

It is an amenable number.

86710401 is a deficient number, since it is larger than the sum of its proper divisors (39380499).

86710401 is a wasteful number, since it uses less digits than its factorization.

86710401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64816 (or 64813 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 86710401 is about 9311.8419767520. The cubic root of 86710401 is about 442.6125577880.

The spelling of 86710401 in words is "eighty-six million, seven hundred ten thousand, four hundred one".

Divisors: 1 3 9 149 447 1341 64661 193983 581949 9634489 28903467 86710401