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872086 = 21393137
BaseRepresentation
bin11010100111010010110
31122022021111
43110322112
5210401321
630405234
710261345
oct3247226
91568244
10872086
11546236
1236081a
13246c37
14189b5c
151235e1
hexd4e96

872086 has 8 divisors (see below), whose sum is σ = 1317960. Its totient is φ = 432768.

The previous prime is 872077. The next prime is 872089. The reversal of 872086 is 680278.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872089) 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 3 ways as a sum of consecutive naturals, for example, 1291 + ... + 1846.

It is an arithmetic number, because the mean of its divisors is an integer number (164745).

2872086 is an apocalyptic number.

872086 is a deficient number, since it is larger than the sum of its proper divisors (445874).

872086 is a wasteful number, since it uses less digits than its factorization.

872086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3278.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 872086 is about 933.8554491997. The cubic root of 872086 is about 95.5402642639.

The spelling of 872086 in words is "eight hundred seventy-two thousand, eighty-six".

Divisors: 1 2 139 278 3137 6274 436043 872086