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42440143213 = 1331110497191
BaseRepresentation
bin100111100001101000…
…010011000101101101
311001112201121122201001
4213201220103011231
51143404134040323
631255143320301
73031464156646
oct474150230555
9131481548631
1042440143213
1116aa9399826
128285150091
134004784ca0
1420a86ba6cd
151185d3c3ad
hex9e1a1316d

42440143213 has 8 divisors (see below), whose sum is σ = 45851734656. Its totient is φ = 39049546800.

The previous prime is 42440143211. The next prime is 42440143223. The reversal of 42440143213 is 31234104424.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42440143213 - 21 = 42440143211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42440143211) 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 7 ways as a sum of consecutive naturals, for example, 5244553 + ... + 5252638.

It is an arithmetic number, because the mean of its divisors is an integer number (5731466832).

Almost surely, 242440143213 is an apocalyptic number.

It is an amenable number.

42440143213 is a deficient number, since it is larger than the sum of its proper divisors (3411591443).

42440143213 is a wasteful number, since it uses less digits than its factorization.

42440143213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10497515.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 42440143213 its reverse (31234104424), we get a palindrome (73674247637).

The spelling of 42440143213 in words is "forty-two billion, four hundred forty million, one hundred forty-three thousand, two hundred thirteen".

Divisors: 1 13 311 4043 10497191 136463483 3264626401 42440143213