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672385 = 5719211
BaseRepresentation
bin10100100001010000001
31021011100011
42210022001
5133004020
622224521
75500210
oct2441201
91234304
10672385
1141a19a
12285141
131a707c
14137077
15d435a
hexa4281

672385 has 8 divisors (see below), whose sum is σ = 922176. Its totient is φ = 461040.

The previous prime is 672379. The next prime is 672439. The reversal of 672385 is 583276.

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

It is not a de Polignac number, because 672385 - 23 = 672377 is a prime.

It is a d-powerful number, because it can be written as 67 + 7 + 36 + 210 + 82 + 58 .

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

It is a Duffinian number.

672385 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9571 + ... + 9640.

It is an arithmetic number, because the mean of its divisors is an integer number (115272).

2672385 is an apocalyptic number.

It is an amenable number.

672385 is a deficient number, since it is larger than the sum of its proper divisors (249791).

672385 is a wasteful number, since it uses less digits than its factorization.

672385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19223.

The product of its digits is 10080, while the sum is 31.

The square root of 672385 is about 819.9908536075. The cubic root of 672385 is about 87.6071069344.

The spelling of 672385 in words is "six hundred seventy-two thousand, three hundred eighty-five".

Divisors: 1 5 7 35 19211 96055 134477 672385