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30012332121200 = 245211131673141863
BaseRepresentation
bin1101101001011110010100…
…11001010001110001110000
310221021011002000202102110202
412310233022121101301300
512413210224010334300
6143455250335214332
76215214365604302
oct664571231216160
9127234060672422
1030012332121200
119621182076260
1234487113773a8
1313991c633a1a0
1475a86713d972
15370a527a0ad5
hex1b4bca651c70

30012332121200 has 240 divisors, whose sum is σ = 85217606724096. Its totient is φ = 10013742566400.

The previous prime is 30012332121089. The next prime is 30012332121217. The reversal of 30012332121200 is 212123321003.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7981469 + ... + 11123331.

Almost surely, 230012332121200 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 30012332121200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42608803362048).

30012332121200 is an abundant number, since it is smaller than the sum of its proper divisors (55205274602896).

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

30012332121200 is a wasteful number, since it uses less digits than its factorization.

30012332121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142072 (or 3142061 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30012332121200 its reverse (212123321003), we get a palindrome (30224455442203).

The spelling of 30012332121200 in words is "thirty trillion, twelve billion, three hundred thirty-two million, one hundred twenty-one thousand, two hundred".