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42441031 = 71597761
BaseRepresentation
bin1010000111100…
…1100101000111
32221212020011001
42201321211013
541331103111
64113354131
71023512533
oct241714507
987766131
1042441031
1121a58636
1212268947
138a3c949
1458cabc3
153ad51c1
hex2879947

42441031 has 4 divisors (see below), whose sum is σ = 43038864. Its totient is φ = 41843200.

The previous prime is 42441029. The next prime is 42441037. The reversal of 42441031 is 13014424.

42441031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42441031 - 21 = 42441029 is a prime.

It is a super-2 number, since 2×424410312 = 3602482224685922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42441037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298810 + ... + 298951.

It is an arithmetic number, because the mean of its divisors is an integer number (10759716).

Almost surely, 242441031 is an apocalyptic number.

42441031 is a deficient number, since it is larger than the sum of its proper divisors (597833).

42441031 is an equidigital number, since it uses as much as digits as its factorization.

42441031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597832.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 42441031 is about 6514.6781194469. The cubic root of 42441031 is about 348.8151252761.

Adding to 42441031 its reverse (13014424), we get a palindrome (55455455).

The spelling of 42441031 in words is "forty-two million, four hundred forty-one thousand, thirty-one".

Divisors: 1 71 597761 42441031