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30012252200 = 23527178315193
BaseRepresentation
bin11011111100110111…
…101010000000101000
32212110121100101020022
4123330313222000220
5442431114032300
621442030420012
72111505635360
oct337467520050
985417311208
1030012252200
1111801152317
125997061608
132aa3a94b18
141649d179a0
15ba9c49285
hex6fcdea028

30012252200 has 192 divisors, whose sum is σ = 85460780160. Its totient is φ = 9567313920.

The previous prime is 30012252157. The next prime is 30012252209. The reversal of 30012252200 is 225221003.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (30012252209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1967804 + ... + 1982996.

It is an arithmetic number, because the mean of its divisors is an integer number (445108230).

Almost surely, 230012252200 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 30012252200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42730390080).

30012252200 is an abundant number, since it is smaller than the sum of its proper divisors (55448527960).

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

30012252200 is a wasteful number, since it uses less digits than its factorization.

30012252200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15316 (or 15307 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 30012252200 its reverse (225221003), we get a palindrome (30237473203).

The spelling of 30012252200 in words is "thirty billion, twelve million, two hundred fifty-two thousand, two hundred".