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47673668 = 2272243233
BaseRepresentation
bin1011010111011…
…1000101000100
310022201001222102
42311313011010
544201024133
64421451232
71116135200
oct265670504
9108631872
1047673668
1124a01a29
1213b70b18
139b52593
14648db00
1542ba7e8
hex2d77144

47673668 has 18 divisors (see below), whose sum is σ = 97050366. Its totient is φ = 20431488.

The previous prime is 47673643. The next prime is 47673673. The reversal of 47673668 is 86637674.

47673668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 43665664 + 4008004 = 6608^2 + 2002^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121421 + ... + 121812.

It is an arithmetic number, because the mean of its divisors is an integer number (5391687).

Almost surely, 247673668 is an apocalyptic number.

It is an amenable number.

47673668 is an abundant number, since it is smaller than the sum of its proper divisors (49376698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47673668 is a wasteful number, since it uses less digits than its factorization.

47673668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243251 (or 243242 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 47.

The square root of 47673668 is about 6904.6120817900. The cubic root of 47673668 is about 362.5986553520.

The spelling of 47673668 in words is "forty-seven million, six hundred seventy-three thousand, six hundred sixty-eight".

Divisors: 1 2 4 7 14 28 49 98 196 243233 486466 972932 1702631 3405262 6810524 11918417 23836834 47673668