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30420122200 = 235213411392053
BaseRepresentation
bin11100010101001011…
…100011101001011000
32220112000211022200121
4130111023203221120
5444300022402300
621550320443024
72124560525626
oct342513435130
986460738617
1030420122200
11119a0403066
125a8b779474
132b3a430610
14168816a516
15bd096481a
hex7152e3a58

30420122200 has 192 divisors, whose sum is σ = 78624655200. Its totient is φ = 10873958400.

The previous prime is 30420122129. The next prime is 30420122203. The reversal of 30420122200 is 222102403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30420122203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14816374 + ... + 14818426.

Almost surely, 230420122200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30420122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39312327600).

30420122200 is an abundant number, since it is smaller than the sum of its proper divisors (48204533000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30420122200 is a wasteful number, since it uses less digits than its factorization.

30420122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262 (or 2253 counting only the distinct ones).

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

Adding to 30420122200 its reverse (222102403), we get a palindrome (30642224603).

The spelling of 30420122200 in words is "thirty billion, four hundred twenty million, one hundred twenty-two thousand, two hundred".