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4799989 = 19257983
BaseRepresentation
bin10010010011110111110101
3100000212100101
4102103313311
52212044424
6250514101
755541065
oct22236765
910025311
104799989
112789337
121735931
13cc0a3c
148cd3a5
1564c344
hex493df5

4799989 has 8 divisors (see below), whose sum is σ = 5077440. Its totient is φ = 4525056.

The previous prime is 4799987. The next prime is 4799999. The reversal of 4799989 is 9899974.

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 4799989 - 21 = 4799987 is a prime.

It is a d-powerful number, because it can be written as 44 + 74 + 93 + 94 + 94 + 83 + 97 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4799981) 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, 4392 + ... + 5374.

It is an arithmetic number, because the mean of its divisors is an integer number (634680).

Almost surely, 24799989 is an apocalyptic number.

It is an amenable number.

4799989 is a deficient number, since it is larger than the sum of its proper divisors (277451).

4799989 is a wasteful number, since it uses less digits than its factorization.

4799989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259.

The product of its digits is 1469664, while the sum is 55.

The square root of 4799989 is about 2190.8877196242. The cubic root of 4799989 is about 168.6864042025.

The spelling of 4799989 in words is "four million, seven hundred ninety-nine thousand, nine hundred eighty-nine".

Divisors: 1 19 257 983 4883 18677 252631 4799989