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30032100223 = 78738160229
BaseRepresentation
bin11011111110000011…
…010111101101111111
32212111222200202121021
4123332003113231333
5443001204201343
621444020045011
72112136432336
oct337603275577
985458622537
1030032100223
1111811379444
1259a1833767
132aa7c24008
14164c802d1d
15bab86a0ed
hex6fe0d7b7f

30032100223 has 4 divisors (see below), whose sum is σ = 30070261240. Its totient is φ = 29993939208.

The previous prime is 30032100221. The next prime is 30032100271. The reversal of 30032100223 is 32200123003.

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 30032100223 - 21 = 30032100221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30032100197 and 30032100206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30032100221) 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, 19079328 + ... + 19080901.

It is an arithmetic number, because the mean of its divisors is an integer number (7517565310).

Almost surely, 230032100223 is an apocalyptic number.

30032100223 is a deficient number, since it is larger than the sum of its proper divisors (38161017).

30032100223 is an equidigital number, since it uses as much as digits as its factorization.

30032100223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38161016.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 30032100223 its reverse (32200123003), we get a palindrome (62232223226).

The spelling of 30032100223 in words is "thirty billion, thirty-two million, one hundred thousand, two hundred twenty-three".

Divisors: 1 787 38160229 30032100223