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672049 = 71931163
BaseRepresentation
bin10100100000100110001
31021010212201
42210010301
5133001144
622223201
75466220
oct2440461
91233781
10672049
11419a14
12284b01
131a6b81
14136cb7
15d41d4
hexa4131

672049 has 16 divisors (see below), whose sum is σ = 839680. Its totient is φ = 524880.

The previous prime is 672043. The next prime is 672059. The reversal of 672049 is 940276.

It is a cyclic number.

It is not a de Polignac number, because 672049 - 23 = 672041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4042 + ... + 4204.

It is an arithmetic number, because the mean of its divisors is an integer number (52480).

2672049 is an apocalyptic number.

It is an amenable number.

672049 is a deficient number, since it is larger than the sum of its proper divisors (167631).

672049 is a wasteful number, since it uses less digits than its factorization.

672049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 672049 is about 819.7859476717. The cubic root of 672049 is about 87.5925116789.

It can be divided in two parts, 67 and 2049, that added together give a square (2116 = 462).

The spelling of 672049 in words is "six hundred seventy-two thousand, forty-nine".

Divisors: 1 7 19 31 133 163 217 589 1141 3097 4123 5053 21679 35371 96007 672049