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4242479 = 137173179
BaseRepresentation
bin10000001011110000101111
321222112120212
4100023300233
52041224404
6230533035
751026513
oct20136057
97875525
104242479
11243848a
12150717b
13b57057
147c6143
1558c06e
hex40bc2f

4242479 has 8 divisors (see below), whose sum is σ = 4322160. Its totient is φ = 4163776.

The previous prime is 4242473. The next prime is 4242517. The reversal of 4242479 is 9742424.

4242479 = T122 + T123 + ... + T300.

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 4242479 - 28 = 4242223 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 (4242473) 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 7 ways as a sum of consecutive naturals, for example, 23612 + ... + 23790.

It is an arithmetic number, because the mean of its divisors is an integer number (540270).

Almost surely, 24242479 is an apocalyptic number.

4242479 is a deficient number, since it is larger than the sum of its proper divisors (79681).

4242479 is a wasteful number, since it uses less digits than its factorization.

4242479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its digits is 16128, while the sum is 32.

The square root of 4242479 is about 2059.7278946502. The cubic root of 4242479 is about 161.8849841538.

Subtracting 4242479 from its reverse (9742424), we obtain a palindrome (5499945).

The spelling of 4242479 in words is "four million, two hundred forty-two thousand, four hundred seventy-nine".

Divisors: 1 137 173 179 23701 24523 30967 4242479