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85865042 = 269162131
BaseRepresentation
bin1010001111000…
…11001001010010
312222120101200202
411013203021102
5133440140132
612304215202
72061561254
oct507431122
9188511622
1085865042
114451774a
122490a502
1314a34b23
14b591cd4
157811762
hex51e3252

85865042 has 8 divisors (see below), whose sum is σ = 128986032. Its totient is φ = 42869700.

The previous prime is 85864997. The next prime is 85865083. The reversal of 85865042 is 24056858.

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

It is a junction number, because it is equal to n+sod(n) for n = 85864987 and 85865005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29684 + ... + 32447.

It is an arithmetic number, because the mean of its divisors is an integer number (16123254).

Almost surely, 285865042 is an apocalyptic number.

85865042 is a deficient number, since it is larger than the sum of its proper divisors (43120990).

85865042 is a wasteful number, since it uses less digits than its factorization.

85865042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62824.

The product of its (nonzero) digits is 76800, while the sum is 38.

The square root of 85865042 is about 9266.3391908563. The cubic root of 85865042 is about 441.1694818400.

The spelling of 85865042 in words is "eighty-five million, eight hundred sixty-five thousand, forty-two".

Divisors: 1 2 691 1382 62131 124262 42932521 85865042