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672089 = 1161099
BaseRepresentation
bin10100100000101011001
31021010221012
42210011121
5133001324
622223305
75466305
oct2440531
91233835
10672089
11419a50
12284b35
131a6bb2
14136d05
15d420e
hexa4159

672089 has 4 divisors (see below), whose sum is σ = 733200. Its totient is φ = 610980.

The previous prime is 672079. The next prime is 672097. The reversal of 672089 is 980276.

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 a cyclic number.

It is not a de Polignac number, because 672089 - 24 = 672073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672019) 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, 30539 + ... + 30560.

It is an arithmetic number, because the mean of its divisors is an integer number (183300).

2672089 is an apocalyptic number.

It is an amenable number.

672089 is a deficient number, since it is larger than the sum of its proper divisors (61111).

672089 is a wasteful number, since it uses less digits than its factorization.

672089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61110.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 672089 is about 819.8103439211. The cubic root of 672089 is about 87.5942494644.

The spelling of 672089 in words is "six hundred seventy-two thousand, eighty-nine".

Divisors: 1 11 61099 672089