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30500445011 = 94133240247
BaseRepresentation
bin11100011001111101…
…111101101101010011
32220201121222010212112
4130121331331231103
5444431103220021
622002310215535
72126554335131
oct343175755523
986647863775
1030500445011
1111a31784853
125ab26545ab
132b50c748ca
141694ab8751
15bd7a2dd5b
hex719f7db53

30500445011 has 4 divisors (see below), whose sum is σ = 30503694672. Its totient is φ = 30497195352.

The previous prime is 30500444993. The next prime is 30500445067. The reversal of 30500445011 is 11054400503.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30500445011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30500444011) 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, 1610711 + ... + 1629536.

It is an arithmetic number, because the mean of its divisors is an integer number (7625923668).

Almost surely, 230500445011 is an apocalyptic number.

30500445011 is a deficient number, since it is larger than the sum of its proper divisors (3249661).

30500445011 is an equidigital number, since it uses as much as digits as its factorization.

30500445011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249660.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 30500445011 its reverse (11054400503), we get a palindrome (41554845514).

The spelling of 30500445011 in words is "thirty billion, five hundred million, four hundred forty-five thousand, eleven".

Divisors: 1 9413 3240247 30500445011