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1144430323 = 1213943471
BaseRepresentation
bin100010000110110…
…1001111011110011
32221202110002021021
41010031221323303
54320433232243
6305321040311
740234332361
oct10415517363
92852402237
101144430323
11538001493
1227b326097
13153138c0a
14abdc6631
156a7106ed
hex44369ef3

1144430323 has 4 divisors (see below), whose sum is σ = 1145375008. Its totient is φ = 1143485640.

The previous prime is 1144430321. The next prime is 1144430381. The reversal of 1144430323 is 3230344411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144430323 - 21 = 1144430321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144430321) 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, 470523 + ... + 472948.

It is an arithmetic number, because the mean of its divisors is an integer number (286343752).

Almost surely, 21144430323 is an apocalyptic number.

1144430323 is a deficient number, since it is larger than the sum of its proper divisors (944685).

1144430323 is an equidigital number, since it uses as much as digits as its factorization.

1144430323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944684.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1144430323 is about 33829.4298355736. The cubic root of 1144430323 is about 1045.9954261201.

Adding to 1144430323 its reverse (3230344411), we get a palindrome (4374774734).

The spelling of 1144430323 in words is "one billion, one hundred forty-four million, four hundred thirty thousand, three hundred twenty-three".

Divisors: 1 1213 943471 1144430323