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30055234747 = 62694794263
BaseRepresentation
bin11011111111011011…
…100111110010111011
32212120121020010012111
4123333123213302323
5443023120002442
621450203553151
72112540165046
oct337733476273
985517203174
1030055234747
111182343a78a
1259a952b7b7
132aac964095
141651905c5d
15bad8d9b17
hex6ff6e7cbb

30055234747 has 4 divisors (see below), whose sum is σ = 30060035280. Its totient is φ = 30050434216.

The previous prime is 30055234739. The next prime is 30055234789. The reversal of 30055234747 is 74743255003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74743255003 = 174396662059.

It is a cyclic number.

It is not a de Polignac number, because 30055234747 - 23 = 30055234739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30055234247) 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, 2390863 + ... + 2403400.

It is an arithmetic number, because the mean of its divisors is an integer number (7515008820).

Almost surely, 230055234747 is an apocalyptic number.

30055234747 is a deficient number, since it is larger than the sum of its proper divisors (4800533).

30055234747 is an equidigital number, since it uses as much as digits as its factorization.

30055234747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800532.

The product of its (nonzero) digits is 352800, while the sum is 40.

The spelling of 30055234747 in words is "thirty billion, fifty-five million, two hundred thirty-four thousand, seven hundred forty-seven".

Divisors: 1 6269 4794263 30055234747