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13044938 = 26522469
BaseRepresentation
bin110001110000…
…110011001010
3220112202021212
4301300303022
511314414223
61143333122
7215610614
oct61606312
926482255
1013044938
1173aa945
1244511a2
1329197ca
141a37db4
15122a278
hexc70cca

13044938 has 4 divisors (see below), whose sum is σ = 19567410. Its totient is φ = 6522468.

The previous prime is 13044937. The next prime is 13044947. The reversal of 13044938 is 83944031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11336689 + 1708249 = 3367^2 + 1307^2 .

It is not an unprimeable number, because it can be changed into a prime (13044937) 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 as a sum of consecutive naturals, namely, 3261233 + ... + 3261236.

Almost surely, 213044938 is an apocalyptic number.

13044938 is a deficient number, since it is larger than the sum of its proper divisors (6522472).

13044938 is an equidigital number, since it uses as much as digits as its factorization.

13044938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6522471.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 13044938 is about 3611.7776786508. Note that the first 3 decimals coincide. The cubic root of 13044938 is about 235.4040912314.

Adding to 13044938 its reverse (83944031), we get a palindrome (96988969).

The spelling of 13044938 in words is "thirteen million, forty-four thousand, nine hundred thirty-eight".

Divisors: 1 2 6522469 13044938