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30217200 = 24352132149
BaseRepresentation
bin111001101000…
…1001111110000
32002212012012120
41303101033300
530213422300
62555354240
7514561536
oct163211760
962765176
1030217200
11160696a2
12a152980
13634cb00
144028156
1529bd3a0
hex1cd13f0

30217200 has 180 divisors, whose sum is σ = 105517800. Its totient is φ = 7388160.

The previous prime is 30217199. The next prime is 30217207. The reversal of 30217200 is 271203.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30217200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30217207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 202726 + ... + 202874.

It is an arithmetic number, because the mean of its divisors is an integer number (586210).

Almost surely, 230217200 is an apocalyptic number.

30217200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30217200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52758900).

30217200 is an abundant number, since it is smaller than the sum of its proper divisors (75300600).

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

30217200 is a wasteful number, since it uses less digits than its factorization.

30217200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 30217200 is about 5497.0173730852. The cubic root of 30217200 is about 311.4713269101.

Adding to 30217200 its reverse (271203), we get a palindrome (30488403).

The spelling of 30217200 in words is "thirty million, two hundred seventeen thousand, two hundred".