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42303001 = 133254077
BaseRepresentation
bin1010000101011…
…1111000011001
32221121012210211
42201113320121
541312144001
64110411121
71022366236
oct241277031
987535724
1042303001
1121973964
1212200aa1
1389c1b80
14589278d
153aa9351
hex2857e19

42303001 has 4 divisors (see below), whose sum is σ = 45557092. Its totient is φ = 39048912.

The previous prime is 42302993. The next prime is 42303011. The reversal of 42303001 is 10030324.

42303001 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 can be written as a sum of positive squares in 2 ways, for example, as 7209225 + 35093776 = 2685^2 + 5924^2 .

It is a cyclic number.

It is not a de Polignac number, because 42303001 - 23 = 42302993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 3254077 = 42303001 / (4 + 2 + 3 + 0 + 3 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42303011) 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, 1627026 + ... + 1627051.

It is an arithmetic number, because the mean of its divisors is an integer number (11389273).

Almost surely, 242303001 is an apocalyptic number.

It is an amenable number.

42303001 is a deficient number, since it is larger than the sum of its proper divisors (3254091).

42303001 is a wasteful number, since it uses less digits than its factorization.

42303001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254090.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 42303001 is about 6504.0757221914. The cubic root of 42303001 is about 348.4365667533.

Adding to 42303001 its reverse (10030324), we get a palindrome (52333325).

The spelling of 42303001 in words is "forty-two million, three hundred three thousand, one".

Divisors: 1 13 3254077 42303001