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30223210331 = 109277277159
BaseRepresentation
bin11100001001011100…
…011001011101011011
32220000022022011101102
4130021130121131123
5443344120212311
621515004142015
72116650022556
oct341134313533
986008264342
1030223210331
11118aa23a286
125a3583790b
132b086b7b12
141669d4d69d
15bbd51a43b
hex70971975b

30223210331 has 4 divisors (see below), whose sum is σ = 30500487600. Its totient is φ = 29945933064.

The previous prime is 30223210327. The next prime is 30223210387. The reversal of 30223210331 is 13301232203.

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 30223210331 - 22 = 30223210327 is a prime.

It is a super-2 number, since 2×302232103312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30223210531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138638471 + ... + 138638688.

It is an arithmetic number, because the mean of its divisors is an integer number (7625121900).

Almost surely, 230223210331 is an apocalyptic number.

30223210331 is a deficient number, since it is larger than the sum of its proper divisors (277277269).

30223210331 is a wasteful number, since it uses less digits than its factorization.

30223210331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277277268.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30223210331 its reverse (13301232203), we get a palindrome (43524442534).

The spelling of 30223210331 in words is "thirty billion, two hundred twenty-three million, two hundred ten thousand, three hundred thirty-one".

Divisors: 1 109 277277159 30223210331