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672141 = 3224047
BaseRepresentation
bin10100100000110001101
31021011000010
42210012031
5133002031
622223433
75466411
oct2440615
91234003
10672141
11419a98
12284b79
131a6c22
14136d41
15d4246
hexa418d

672141 has 4 divisors (see below), whose sum is σ = 896192. Its totient is φ = 448092.

The previous prime is 672137. The next prime is 672143. The reversal of 672141 is 141276.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 672141 - 22 = 672137 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112021 + ... + 112026.

It is an arithmetic number, because the mean of its divisors is an integer number (224048).

2672141 is an apocalyptic number.

It is an amenable number.

672141 is a deficient number, since it is larger than the sum of its proper divisors (224051).

672141 is a wasteful number, since it uses less digits than its factorization.

672141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224050.

The product of its digits is 336, while the sum is 21.

The square root of 672141 is about 819.8420579599. The cubic root of 672141 is about 87.5965084824.

The spelling of 672141 in words is "six hundred seventy-two thousand, one hundred forty-one".

Divisors: 1 3 224047 672141