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30281954112 = 2633471792083
BaseRepresentation
bin11100001100111100…
…011111001101000000
32220011101211122201000
4130030330133031000
5444004140012422
621524503212000
72121262235334
oct341474371500
986141748630
1030281954112
111192a412363
125a51447000
132b17915057
141673a817c4
15bc3770cac
hex70cf1f340

30281954112 has 224 divisors, whose sum is σ = 91469260800. Its totient is φ = 9819311616.

The previous prime is 30281954093. The next prime is 30281954117. The reversal of 30281954112 is 21145918203.

30281954112 is a `hidden beast` number, since 30 + 2 + 81 + 9 + 541 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30281954117) 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 31 ways as a sum of consecutive naturals, for example, 14536623 + ... + 14538705.

Almost surely, 230281954112 is an apocalyptic number.

30281954112 is a gapful number since it is divisible by the number (32) 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 30281954112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45734630400).

30281954112 is an abundant number, since it is smaller than the sum of its proper divisors (61187306688).

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

30281954112 is a wasteful number, since it uses less digits than its factorization.

30281954112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330 (or 2314 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The spelling of 30281954112 in words is "thirty billion, two hundred eighty-one million, nine hundred fifty-four thousand, one hundred twelve".