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1044144311 = 7149163473
BaseRepresentation
bin111110001111000…
…110000010110111
32200202202000201112
4332033012002313
54114300104221
6251335345235
734606036340
oct7617060267
92622660645
101044144311
11496435091
1225182221b
13138425192
149c95d0c7
1561a0115b
hex3e3c60b7

1044144311 has 4 divisors (see below), whose sum is σ = 1193307792. Its totient is φ = 894980832.

The previous prime is 1044144289. The next prime is 1044144323. The reversal of 1044144311 is 1134414401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1134414401 = 2714186031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1044144311 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 (1044144341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74581730 + ... + 74581743.

It is an arithmetic number, because the mean of its divisors is an integer number (298326948).

Almost surely, 21044144311 is an apocalyptic number.

1044144311 is a deficient number, since it is larger than the sum of its proper divisors (149163481).

1044144311 is an equidigital number, since it uses as much as digits as its factorization.

1044144311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149163480.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1044144311 is about 32313.2219223030. The cubic root of 1044144311 is about 1014.5034046622.

Adding to 1044144311 its reverse (1134414401), we get a palindrome (2178558712).

The spelling of 1044144311 in words is "one billion, forty-four million, one hundred forty-four thousand, three hundred eleven".

Divisors: 1 7 149163473 1044144311