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440144343 = 3263677681
BaseRepresentation
bin11010001111000…
…001000111010111
31010200012122112100
4122033001013113
51400134104333
6111401453143
713623110442
oct3217010727
91120178470
10440144343
112064a4a61
121034a11b3
1370258a52
1442654659
1528993213
hex1a3c11d7

440144343 has 12 divisors (see below), whose sum is σ = 635946688. Its totient is φ = 293345280.

The previous prime is 440144333. The next prime is 440144347. The reversal of 440144343 is 343441044.

It is not a de Polignac number, because 440144343 - 29 = 440143831 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 (440144347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53463 + ... + 61143.

Almost surely, 2440144343 is an apocalyptic number.

440144343 is a deficient number, since it is larger than the sum of its proper divisors (195802345).

440144343 is a wasteful number, since it uses less digits than its factorization.

440144343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14054 (or 14051 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 440144343 is about 20979.6173225347. The cubic root of 440144343 is about 760.6736542056.

Adding to 440144343 its reverse (343441044), we get a palindrome (783585387).

The spelling of 440144343 in words is "four hundred forty million, one hundred forty-four thousand, three hundred forty-three".

Divisors: 1 3 9 6367 7681 19101 23043 57303 69129 48904927 146714781 440144343