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30220222012 = 2273752313757
BaseRepresentation
bin11100001001010000…
…111111111000111100
32220000002200100011221
4130021100333320330
5443342334101022
621514420123124
72116612435351
oct341120777074
986002610157
1030220222012
11118a85890a2
125a348364a4
132b07bac896
1416697b2628
15bbd129cc7
hex70943fe3c

30220222012 has 24 divisors (see below), whose sum is σ = 53620869456. Its totient is φ = 14900059008.

The previous prime is 30220221979. The next prime is 30220222013. The reversal of 30220222012 is 21022202203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220222013) 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, 2189838 + ... + 2203594.

It is an arithmetic number, because the mean of its divisors is an integer number (2234202894).

Almost surely, 230220222012 is an apocalyptic number.

It is an amenable number.

30220222012 is a deficient number, since it is larger than the sum of its proper divisors (23400647444).

30220222012 is a wasteful number, since it uses less digits than its factorization.

30220222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21357 (or 21355 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30220222012 its reverse (21022202203), we get a palindrome (51242424215).

The spelling of 30220222012 in words is "thirty billion, two hundred twenty million, two hundred twenty-two thousand, twelve".

Divisors: 1 2 4 73 146 292 7523 13757 15046 27514 30092 55028 549179 1004261 1098358 2008522 2196716 4017044 103493911 206987822 413975644 7555055503 15110111006 30220222012