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672112069 = 8944317047
BaseRepresentation
bin101000000011111…
…001110111000101
31201211200211102121
4220003321313011
52334030041234
6150405405541
722440600256
oct5003716705
91654624377
10672112069
11315431822
121691098b1
13a9326865
1465398b2d
153e0144b4
hex280f9dc5

672112069 has 8 divisors (see below), whose sum is σ = 681238080. Its totient is φ = 663021216.

The previous prime is 672112043. The next prime is 672112087. The reversal of 672112069 is 960211276.

672112069 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 672112069 - 25 = 672112037 is a prime.

It is a super-2 number, since 2×6721120692 = 903469266590921522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672112039) 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, 30904 + ... + 47950.

It is an arithmetic number, because the mean of its divisors is an integer number (85154760).

Almost surely, 2672112069 is an apocalyptic number.

It is an amenable number.

672112069 is a deficient number, since it is larger than the sum of its proper divisors (9126011).

672112069 is a wasteful number, since it uses less digits than its factorization.

672112069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17579.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 672112069 is about 25925.1242812836. The cubic root of 672112069 is about 875.9525165737.

The spelling of 672112069 in words is "six hundred seventy-two million, one hundred twelve thousand, sixty-nine".

Divisors: 1 89 443 17047 39427 1517183 7551821 672112069