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4904689 = 19125679
BaseRepresentation
bin10010101101011011110001
3100020011222011
4102231123301
52223422224
6253042521
756455246
oct22553361
910204864
104904689
11284aa69
121786441
1310295aa
149195cd
1566d394
hex4ad6f1

4904689 has 4 divisors (see below), whose sum is σ = 4930560. Its totient is φ = 4878820.

The previous prime is 4904663. The next prime is 4904699. The reversal of 4904689 is 9864094.

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: 9864094 = 24932047.

It is a cyclic number.

It is not a de Polignac number, because 4904689 - 25 = 4904657 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.

4904689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4904629) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12649 + ... + 13030.

It is an arithmetic number, because the mean of its divisors is an integer number (1232640).

Almost surely, 24904689 is an apocalyptic number.

It is an amenable number.

4904689 is a deficient number, since it is larger than the sum of its proper divisors (25871).

4904689 is a wasteful number, since it uses less digits than its factorization.

4904689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25870.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 4904689 is about 2214.6532459959. The cubic root of 4904689 is about 169.9040866113.

The spelling of 4904689 in words is "four million, nine hundred four thousand, six hundred eighty-nine".

Divisors: 1 191 25679 4904689