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4989055 = 5997811
BaseRepresentation
bin10011000010000001111111
3100101110200211
4103002001333
52234122210
6254533251
760256231
oct23020177
910343624
104989055
1128a8395
121807227
131058b06
1493c251
1568838a
hex4c207f

4989055 has 4 divisors (see below), whose sum is σ = 5986872. Its totient is φ = 3991240.

The previous prime is 4989053. The next prime is 4989067. The reversal of 4989055 is 5509894.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4989055 - 21 = 4989053 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4988999 and 4989017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4989053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498901 + ... + 498910.

It is an arithmetic number, because the mean of its divisors is an integer number (1496718).

Almost surely, 24989055 is an apocalyptic number.

4989055 is a deficient number, since it is larger than the sum of its proper divisors (997817).

4989055 is an equidigital number, since it uses as much as digits as its factorization.

4989055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997816.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 4989055 is about 2233.6192603038. The cubic root of 4989055 is about 170.8727322705.

The spelling of 4989055 in words is "four million, nine hundred eighty-nine thousand, fifty-five".

Divisors: 1 5 997811 4989055