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30379758228 = 2232843882173
BaseRepresentation
bin11100010010110001…
…100101001010010100
32220102012212121201200
4130102301211022110
5444204204230403
621542315352500
72123560453461
oct342261451224
986365777650
1030379758228
111197a644006
125a7a152730
132b31c6a201
141682a60668
15bcc13eca3
hex712c65294

30379758228 has 18 divisors (see below), whose sum is σ = 76793277834. Its totient is φ = 10126586064.

The previous prime is 30379758197. The next prime is 30379758289. The reversal of 30379758228 is 82285797303.

30379758228 is a `hidden beast` number, since 3 + 0 + 37 + 9 + 7 + 582 + 28 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22109310864 + 8270447364 = 148692^2 + 90942^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421941051 + ... + 421941122.

It is an arithmetic number, because the mean of its divisors is an integer number (4266293213).

Almost surely, 230379758228 is an apocalyptic number.

It is an amenable number.

30379758228 is an abundant number, since it is smaller than the sum of its proper divisors (46413519606).

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

30379758228 is a wasteful number, since it uses less digits than its factorization.

30379758228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843882183 (or 843882178 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 30379758228 in words is "thirty billion, three hundred seventy-nine million, seven hundred fifty-eight thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 843882173 1687764346 2531646519 3375528692 5063293038 7594939557 10126586076 15189879114 30379758228