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30210121300 = 2252302101213
BaseRepresentation
bin11100001000101010…
…011101111001010100
32212222101200011121111
4130020222131321110
5443332242340200
621513415424404
72116430536252
oct341052357124
985871604544
1030210121300
11118a290a2a7
125a31385104
132b05a84228
1416683035d2
15bbc2d20ba
hex708a9de54

30210121300 has 18 divisors (see below), whose sum is σ = 65555963438. Its totient is φ = 12084048480.

The previous prime is 30210121297. The next prime is 30210121301. The reversal of 30210121300 is 312101203.

It can be written as a sum of positive squares in 3 ways, for example, as 3772662084 + 26437459216 = 61422^2 + 162596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30210121301) 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 5 ways as a sum of consecutive naturals, for example, 151050507 + ... + 151050706.

Almost surely, 230210121300 is an apocalyptic number.

It is an amenable number.

30210121300 is an abundant number, since it is smaller than the sum of its proper divisors (35345842138).

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

30210121300 is a wasteful number, since it uses less digits than its factorization.

30210121300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302101227 (or 302101220 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 30210121300 its reverse (312101203), we get a palindrome (30522222503).

The spelling of 30210121300 in words is "thirty billion, two hundred ten million, one hundred twenty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 302101213 604202426 1208404852 1510506065 3021012130 6042024260 7552530325 15105060650 30210121300