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672379889 = 5373917167
BaseRepresentation
bin101000000100111…
…011001111110001
31201212012102210212
4220010323033301
52334112124024
6150415233505
722443064136
oct5004731761
91655172725
10672379889
113155a4a65
12169218895
13a93bb72c
146542858d
153e068a0e
hex2813b3f1

672379889 has 8 divisors (see below), whose sum is σ = 686033280. Its totient is φ = 658762416.

The previous prime is 672379879. The next prime is 672379913. The reversal of 672379889 is 988973276.

672379889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 672379889 - 28 = 672379633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (672379879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30584 + ... + 47750.

It is an arithmetic number, because the mean of its divisors is an integer number (85754160).

Almost surely, 2672379889 is an apocalyptic number.

It is an amenable number.

672379889 is a deficient number, since it is larger than the sum of its proper divisors (13653391).

672379889 is a wasteful number, since it uses less digits than its factorization.

672379889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17959.

The product of its digits is 9144576, while the sum is 59.

The square root of 672379889 is about 25930.2890265419. The cubic root of 672379889 is about 876.0688495784.

The spelling of 672379889 in words is "six hundred seventy-two million, three hundred seventy-nine thousand, eight hundred eighty-nine".

Divisors: 1 53 739 17167 39167 909851 12686413 672379889