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30221202043 = 71425650733
BaseRepresentation
bin11100001001010100…
…101111001001111011
32220000011112010112101
4130021110233021323
5443343111431133
621514453124231
72116623656524
oct341124571173
986004463471
1030221202043
11118a909843a
125a35029677
132b08163996
14166998984b
15bbd27037d
hex70952f27b

30221202043 has 4 divisors (see below), whose sum is σ = 30646852848. Its totient is φ = 29795551240.

The previous prime is 30221202041. The next prime is 30221202047. The reversal of 30221202043 is 34020212203.

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 30221202043 - 21 = 30221202041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30221202043.

It is not an unprimeable number, because it can be changed into a prime (30221202041) 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, 212825296 + ... + 212825437.

It is an arithmetic number, because the mean of its divisors is an integer number (7661713212).

Almost surely, 230221202043 is an apocalyptic number.

30221202043 is a deficient number, since it is larger than the sum of its proper divisors (425650805).

30221202043 is an equidigital number, since it uses as much as digits as its factorization.

30221202043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425650804.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 30221202043 its reverse (34020212203), we get a palindrome (64241414246).

The spelling of 30221202043 in words is "thirty billion, two hundred twenty-one million, two hundred two thousand, forty-three".

Divisors: 1 71 425650733 30221202043