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30055537543 = 191581870397
BaseRepresentation
bin11011111111011100…
…110001101110000111
32212120121210111120011
4123333130301232013
5443023204200133
621450214251051
72112542565613
oct337734615607
985517714504
1030055537543
1111823627229
1259a9656a87
132aaca3bb55
141651984343
15bad9496cd
hex6ff731b87

30055537543 has 4 divisors (see below), whose sum is σ = 31637407960. Its totient is φ = 28473667128.

The previous prime is 30055537529. The next prime is 30055537553. The reversal of 30055537543 is 34573555003.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30055537543 - 225 = 30021983111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30055537496 and 30055537505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055537513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790935180 + ... + 790935217.

It is an arithmetic number, because the mean of its divisors is an integer number (7909351990).

Almost surely, 230055537543 is an apocalyptic number.

30055537543 is a deficient number, since it is larger than the sum of its proper divisors (1581870417).

30055537543 is a wasteful number, since it uses less digits than its factorization.

30055537543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581870416.

The product of its (nonzero) digits is 472500, while the sum is 40.

The spelling of 30055537543 in words is "thirty billion, fifty-five million, five hundred thirty-seven thousand, five hundred forty-three".

Divisors: 1 19 1581870397 30055537543