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420103321 = 11211181001
BaseRepresentation
bin11001000010100…
…100010010011001
31002021111110102021
4121002210102121
51330021301241
6105404134441
713260551011
oct3102442231
91067443367
10420103321
111a6156930
12b8837421
136905ca61
143db18c41
1526d350d1
hex190a4499

420103321 has 8 divisors (see below), whose sum is σ = 460469088. Its totient is φ = 380100000.

The previous prime is 420103301. The next prime is 420103373. The reversal of 420103321 is 123301024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420103321 - 213 = 420095129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420103295 and 420103304.

It is not an unprimeable number, because it can be changed into a prime (420103301) 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 7 ways as a sum of consecutive naturals, for example, 88180 + ... + 92821.

It is an arithmetic number, because the mean of its divisors is an integer number (57558636).

Almost surely, 2420103321 is an apocalyptic number.

It is an amenable number.

420103321 is a deficient number, since it is larger than the sum of its proper divisors (40365767).

420103321 is a wasteful number, since it uses less digits than its factorization.

420103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181223.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 420103321 is about 20496.4221511951. The cubic root of 420103321 is about 748.9486430349.

Adding to 420103321 its reverse (123301024), we get a palindrome (543404345).

The spelling of 420103321 in words is "four hundred twenty million, one hundred three thousand, three hundred twenty-one".

Divisors: 1 11 211 2321 181001 1991011 38191211 420103321