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30055105025 = 5211109291291
BaseRepresentation
bin11011111111011011…
…001000001000000001
32212120120222112020222
4123333123020020001
5443023101330100
621450201112425
72112536114621
oct337733101001
985516875228
1030055105025
1111823361280
1259a9488715
132aac91a01a
1416518b0881
15bad8b1485
hex6ff6c8201

30055105025 has 12 divisors (see below), whose sum is σ = 40656360624. Its totient is φ = 21858258000.

The previous prime is 30055105021. The next prime is 30055105039. The reversal of 30055105025 is 52050155003.

It is not a de Polignac number, because 30055105025 - 22 = 30055105021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30055104985 and 30055105003.

It is not an unprimeable number, because it can be changed into a prime (30055105021) 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 11 ways as a sum of consecutive naturals, for example, 54645371 + ... + 54645920.

It is an arithmetic number, because the mean of its divisors is an integer number (3388030052).

Almost surely, 230055105025 is an apocalyptic number.

It is an amenable number.

30055105025 is a deficient number, since it is larger than the sum of its proper divisors (10601255599).

30055105025 is a wasteful number, since it uses less digits than its factorization.

30055105025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109291312 (or 109291307 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 26.

The spelling of 30055105025 in words is "thirty billion, fifty-five million, one hundred five thousand, twenty-five".

Divisors: 1 5 11 25 55 275 109291291 546456455 1202204201 2732282275 6011021005 30055105025