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30055105023 = 310018368341
BaseRepresentation
bin11011111111011011…
…001000000111111111
32212120120222112020220
4123333123020013333
5443023101330043
621450201112423
72112536114616
oct337733100777
985516875226
1030055105023
1111823361279
1259a9488713
132aac91a018
1416518b087d
15bad8b1483
hex6ff6c81ff

30055105023 has 4 divisors (see below), whose sum is σ = 40073473368. Its totient is φ = 20036736680.

The previous prime is 30055105021. The next prime is 30055105039. The reversal of 30055105023 is 32050155003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32050155003 = 310683385001.

It is a cyclic number.

It is not a de Polignac number, because 30055105023 - 21 = 30055105021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30055104984 and 30055105002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055105021) 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, 5009184168 + ... + 5009184173.

It is an arithmetic number, because the mean of its divisors is an integer number (10018368342).

Almost surely, 230055105023 is an apocalyptic number.

30055105023 is a deficient number, since it is larger than the sum of its proper divisors (10018368345).

30055105023 is a wasteful number, since it uses less digits than its factorization.

30055105023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10018368344.

The product of its (nonzero) digits is 2250, while the sum is 24.

The spelling of 30055105023 in words is "thirty billion, fifty-five million, one hundred five thousand, twenty-three".

Divisors: 1 3 10018368341 30055105023