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420223033 = 607969127
BaseRepresentation
bin11001000011000…
…001100000111001
31002021201112122001
4121003001200321
51330034114113
6105410501001
713261560016
oct3103014071
91067645561
10420223033
111a622886a
12b8894761
13690a23a9
143db4a70d
1526d5a7dd
hex190c1839

420223033 has 4 divisors (see below), whose sum is σ = 420298240. Its totient is φ = 420147828.

The previous prime is 420223031. The next prime is 420223093. The reversal of 420223033 is 330322024.

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 420223033 - 21 = 420223031 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 420223033.

It is not an unprimeable number, because it can be changed into a prime (420223031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28485 + ... + 40642.

It is an arithmetic number, because the mean of its divisors is an integer number (105074560).

Almost surely, 2420223033 is an apocalyptic number.

It is an amenable number.

420223033 is a deficient number, since it is larger than the sum of its proper divisors (75207).

420223033 is an equidigital number, since it uses as much as digits as its factorization.

420223033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75206.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 420223033 is about 20499.3422577409. The cubic root of 420223033 is about 749.0197760320.

Adding to 420223033 its reverse (330322024), we get a palindrome (750545057).

The spelling of 420223033 in words is "four hundred twenty million, two hundred twenty-three thousand, thirty-three".

Divisors: 1 6079 69127 420223033