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442433413 = 3174193331
BaseRepresentation
bin11010010111101…
…111111110000101
31010211111221112201
4122113233332011
51401230332123
6111522514501
713651423222
oct3227577605
91124457481
10442433413
11207818854
12104205a31
137087a926
1442a8c949
1528c965ad
hex1a5eff85

442433413 has 8 divisors (see below), whose sum is σ = 445021920. Its totient is φ = 439853040.

The previous prime is 442433401. The next prime is 442433423. The reversal of 442433413 is 314334244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-442433413 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 (442433423) 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 7 ways as a sum of consecutive naturals, for example, 131158 + ... + 134488.

It is an arithmetic number, because the mean of its divisors is an integer number (55627740).

Almost surely, 2442433413 is an apocalyptic number.

It is an amenable number.

442433413 is a deficient number, since it is larger than the sum of its proper divisors (2588507).

442433413 is a wasteful number, since it uses less digits than its factorization.

442433413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067.

The product of its digits is 13824, while the sum is 28.

The square root of 442433413 is about 21034.1011930627. The cubic root of 442433413 is about 761.9900597579.

Adding to 442433413 its reverse (314334244), we get a palindrome (756767657).

The spelling of 442433413 in words is "four hundred forty-two million, four hundred thirty-three thousand, four hundred thirteen".

Divisors: 1 317 419 3331 132823 1055927 1395689 442433413