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1043442001 = 7149063143
BaseRepresentation
bin111110001100011…
…010100101010001
32200201102100100001
4332030122211101
54114110121001
6251312330001
734600052650
oct7614324521
92621370301
101043442001
11495aa5468
12251543901
1313823a604
149c819197
1561913001
hex3e31a951

1043442001 has 4 divisors (see below), whose sum is σ = 1192505152. Its totient is φ = 894378852.

The previous prime is 1043441969. The next prime is 1043442073. The reversal of 1043442001 is 1002443401.

1043442001 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, 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 1043442001 - 25 = 1043441969 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 1043442001.

It is not an unprimeable number, because it can be changed into a prime (1043442401) 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, 74531565 + ... + 74531578.

It is an arithmetic number, because the mean of its divisors is an integer number (298126288).

Almost surely, 21043442001 is an apocalyptic number.

It is an amenable number.

1043442001 is a deficient number, since it is larger than the sum of its proper divisors (149063151).

1043442001 is an equidigital number, since it uses as much as digits as its factorization.

1043442001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149063150.

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

The square root of 1043442001 is about 32302.3528709597. The cubic root of 1043442001 is about 1014.2758959791.

Adding to 1043442001 its reverse (1002443401), we get a palindrome (2045885402).

The spelling of 1043442001 in words is "one billion, forty-three million, four hundred forty-two thousand, one".

Divisors: 1 7 149063143 1043442001