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82464865 = 572356139
BaseRepresentation
bin1001110101001…
…01000001100001
312202011122112021
410322211001201
5132102333430
612103301441
72020640230
oct472450141
9182148467
1082464865
114260508a
122374a881
13141142a2
14ad48b17
15738e07a
hex4ea5061

82464865 has 8 divisors (see below), whose sum is σ = 113094720. Its totient is φ = 56547312.

The previous prime is 82464803. The next prime is 82464869. The reversal of 82464865 is 56846428.

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 82464865 - 211 = 82462817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82464869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178035 + ... + 1178104.

It is an arithmetic number, because the mean of its divisors is an integer number (14136840).

Almost surely, 282464865 is an apocalyptic number.

It is an amenable number.

82464865 is a deficient number, since it is larger than the sum of its proper divisors (30629855).

82464865 is a wasteful number, since it uses less digits than its factorization.

82464865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356151.

The product of its digits is 368640, while the sum is 43.

The square root of 82464865 is about 9081.0167382293. The cubic root of 82464865 is about 435.2675766001.

The spelling of 82464865 in words is "eighty-two million, four hundred sixty-four thousand, eight hundred sixty-five".

Divisors: 1 5 7 35 2356139 11780695 16492973 82464865