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30021231220223 = 523710529544451
BaseRepresentation
bin1101101001101110111001…
…10100101001010111111111
310221022000001012222111100212
412310313130310221113333
512413331440143021343
6143503321353543035
76215651044651355
oct664673464512777
9127260035874325
1030021231220223
119624a29410051
12344a395714a7b
131399cb3c1c859
1475b06cdab7d5
15370dc3b9ac18
hex1b4ddcd295ff

30021231220223 has 8 divisors (see below), whose sum is σ = 30029870735280. Its totient is φ = 30012592825600.

The previous prime is 30021231220217. The next prime is 30021231220249. The reversal of 30021231220223 is 32202213212003.

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 30021231220223 - 214 = 30021231203839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30021231250223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54868148 + ... + 55412598.

It is an arithmetic number, because the mean of its divisors is an integer number (3753733841910).

Almost surely, 230021231220223 is an apocalyptic number.

30021231220223 is a deficient number, since it is larger than the sum of its proper divisors (8639515057).

30021231220223 is a wasteful number, since it uses less digits than its factorization.

30021231220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560217.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30021231220223 its reverse (32202213212003), we get a palindrome (62223444432226).

The spelling of 30021231220223 in words is "thirty trillion, twenty-one billion, two hundred thirty-one million, two hundred twenty thousand, two hundred twenty-three".

Divisors: 1 5237 10529 544451 55140373 2851289887 5732524579 30021231220223