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672148 = 22168037
BaseRepresentation
bin10100100000110010100
31021011000101
42210012110
5133002043
622223444
75466421
oct2440624
91234011
10672148
11419aa4
12284b84
131a6c29
14136d48
15d424d
hexa4194

672148 has 6 divisors (see below), whose sum is σ = 1176266. Its totient is φ = 336072.

The previous prime is 672143. The next prime is 672151. The reversal of 672148 is 841276.

672148 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in only one way, i.e., 636804 + 35344 = 798^2 + 188^2 .

It is a plaindrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672143) 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 as a sum of consecutive naturals, namely, 84015 + ... + 84022.

2672148 is an apocalyptic number.

It is an amenable number.

672148 is a deficient number, since it is larger than the sum of its proper divisors (504118).

672148 is a wasteful number, since it uses less digits than its factorization.

672148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168041 (or 168039 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 672148 is about 819.8463270638. The cubic root of 672148 is about 87.5968125721.

It can be divided in two parts, 672 and 148, that added together give a triangular number (820 = T40).

The spelling of 672148 in words is "six hundred seventy-two thousand, one hundred forty-eight".

Divisors: 1 2 4 168037 336074 672148