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1672275893 = 5783289171
BaseRepresentation
bin110001110101100…
…1110011110110101
311022112200102021012
41203223032132311
511411100312033
6433534402005
756304052631
oct14353163665
94275612235
101672275893
11788a576a2
123a8060305
132085c0482
1411c149dc1
159bc29248
hex63ace7b5

1672275893 has 4 divisors (see below), whose sum is σ = 1672570848. Its totient is φ = 1671980940.

The previous prime is 1672275863. The next prime is 1672275911. The reversal of 1672275893 is 3985722761.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3985722761 = 4392691227.

It is a cyclic number.

It is not a de Polignac number, because 1672275893 - 220 = 1671227317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672275863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138803 + ... + 150368.

It is an arithmetic number, because the mean of its divisors is an integer number (418142712).

Almost surely, 21672275893 is an apocalyptic number.

It is an amenable number.

1672275893 is a deficient number, since it is larger than the sum of its proper divisors (294955).

1672275893 is an equidigital number, since it uses as much as digits as its factorization.

1672275893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294954.

The product of its digits is 1270080, while the sum is 50.

The square root of 1672275893 is about 40893.4700532982. The cubic root of 1672275893 is about 1186.9597067592.

The spelling of 1672275893 in words is "one billion, six hundred seventy-two million, two hundred seventy-five thousand, eight hundred ninety-three".

Divisors: 1 5783 289171 1672275893