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30305050278 = 235050841713
BaseRepresentation
bin11100001110010100…
…100101111010100110
32220020000022001200120
4130032110211322212
5444031043102103
621531050222410
72121662451156
oct341624457246
986200261616
1030305050278
11119414578a8
125a59124a06
132b1c640819
141676b74766
15bc57d4253
hex70e525ea6

30305050278 has 8 divisors (see below), whose sum is σ = 60610100568. Its totient is φ = 10101683424.

The previous prime is 30305050271. The next prime is 30305050297. The reversal of 30305050278 is 87205050303.

It is a sphenic number, since it is the product of 3 distinct primes.

30305050278 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30305050271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525420851 + ... + 2525420862.

It is an arithmetic number, because the mean of its divisors is an integer number (7576262571).

Almost surely, 230305050278 is an apocalyptic number.

30305050278 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30305050278 is a wasteful number, since it uses less digits than its factorization.

30305050278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050841718.

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 30305050278 in words is "thirty billion, three hundred five million, fifty thousand, two hundred seventy-eight".

Divisors: 1 2 3 6 5050841713 10101683426 15152525139 30305050278