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1244442434 = 21609386713
BaseRepresentation
bin100101000101100…
…1010111101000010
310012201122020002112
41022023022331002
510022034124214
6323252415322
742560405024
oct11213127502
93181566075
101244442434
11589501024
122a8917542
1316aa85091
14bb3bc014
15743b8a3e
hex4a2caf42

1244442434 has 8 divisors (see below), whose sum is σ = 1867828620. Its totient is φ = 621832896.

The previous prime is 1244442431. The next prime is 1244442443. The reversal of 1244442434 is 4342444421.

It can be written as a sum of positive squares in 2 ways, for example, as 995591809 + 248850625 = 31553^2 + 15775^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1244442434.

It is not an unprimeable number, because it can be changed into a prime (1244442431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190139 + ... + 196574.

Almost surely, 21244442434 is an apocalyptic number.

1244442434 is a deficient number, since it is larger than the sum of its proper divisors (623386186).

1244442434 is a wasteful number, since it uses less digits than its factorization.

1244442434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388324.

The product of its digits is 49152, while the sum is 32.

The square root of 1244442434 is about 35276.6556521448. The cubic root of 1244442434 is about 1075.6185181157.

Adding to 1244442434 its reverse (4342444421), we get a palindrome (5586886855).

The spelling of 1244442434 in words is "one billion, two hundred forty-four million, four hundred forty-two thousand, four hundred thirty-four".

Divisors: 1 2 1609 3218 386713 773426 622221217 1244442434