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31043105441 = 48763743543
BaseRepresentation
bin11100111010010100…
…000011001010100001
32222010110002011000222
4130322110003022201
51002034013333231
622132213252425
72146164020405
oct347224031241
988113064028
1031043105441
1112190029647
126024334115
132c0951545a
141706bb7105
15c1a4c227b
hex73a5032a1

31043105441 has 4 divisors (see below), whose sum is σ = 31106849472. Its totient is φ = 30979361412.

The previous prime is 31043105417. The next prime is 31043105447. The reversal of 31043105441 is 14450134013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31043105441 - 214 = 31043089057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31043105441.

It is not an unprimeable number, because it can be changed into a prime (31043105447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31871285 + ... + 31872258.

It is an arithmetic number, because the mean of its divisors is an integer number (7776712368).

Almost surely, 231043105441 is an apocalyptic number.

It is an amenable number.

31043105441 is a deficient number, since it is larger than the sum of its proper divisors (63744031).

31043105441 is an equidigital number, since it uses as much as digits as its factorization.

31043105441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63744030.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 31043105441 its reverse (14450134013), we get a palindrome (45493239454).

The spelling of 31043105441 in words is "thirty-one billion, forty-three million, one hundred five thousand, four hundred forty-one".

Divisors: 1 487 63743543 31043105441