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30000001223 = 59772365839
BaseRepresentation
bin11011111100001000…
…111011000011000111
32212102202021222001102
4123330020323003013
5442420000014343
621440512050315
72111266542263
oct337410730307
985382258042
1030000001223
11117a5244a45
125992b3399b
132aa139581a
1416484490a3
15ba8b293b8
hex6fc23b0c7

30000001223 has 8 divisors (see below), whose sum is σ = 30512889600. Its totient is φ = 29487260088.

The previous prime is 30000001177. The next prime is 30000001237. The reversal of 30000001223 is 32210000003.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30000001223 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 (30000001523) 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 7 ways as a sum of consecutive naturals, for example, 422738 + ... + 488576.

It is an arithmetic number, because the mean of its divisors is an integer number (3814111200).

Almost surely, 230000001223 is an apocalyptic number.

30000001223 is a deficient number, since it is larger than the sum of its proper divisors (512888377).

30000001223 is an equidigital number, since it uses as much as digits as its factorization.

30000001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73621.

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 30000001223 its reverse (32210000003), we get a palindrome (62210001226).

The spelling of 30000001223 in words is "thirty billion, one thousand, two hundred twenty-three".

Divisors: 1 59 7723 65839 455657 3884501 508474597 30000001223