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13042144 = 25407567
BaseRepresentation
bin110001110000…
…000111100000
3220112121110101
4301300013200
511314322034
61143312144
7215566513
oct61600740
926477411
1013042144
1173a8835
12444b654
13291845b
141a36d7a
151229514
hexc701e0

13042144 has 12 divisors (see below), whose sum is σ = 25676784. Its totient is φ = 6521056.

The previous prime is 13042129. The next prime is 13042157. The reversal of 13042144 is 44124031.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203752 + ... + 203815.

It is an arithmetic number, because the mean of its divisors is an integer number (2139732).

Almost surely, 213042144 is an apocalyptic number.

It is an amenable number.

13042144 is a deficient number, since it is larger than the sum of its proper divisors (12634640).

13042144 is an equidigital number, since it uses as much as digits as its factorization.

13042144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407577 (or 407569 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 13042144 is about 3611.3908677960. The cubic root of 13042144 is about 235.3872835370.

Adding to 13042144 its reverse (44124031), we get a palindrome (57166175).

The spelling of 13042144 in words is "thirteen million, forty-two thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 32 407567 815134 1630268 3260536 6521072 13042144