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30020131023 = 313037679747
BaseRepresentation
bin11011111101010101…
…101101100011001111
32212111011011122221120
4123331111231203033
5442440123143043
621442511332023
72111632621611
oct337525554317
985434148846
1030020131023
1111805643843
125999821013
132aa55c304c
14164ada8db1
15baa7a3983
hex6fd56d8cf

30020131023 has 8 divisors (see below), whose sum is σ = 40057565568. Its totient is φ = 19998058584.

The previous prime is 30020130949. The next prime is 30020131067. The reversal of 30020131023 is 32013102003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30020131023 - 225 = 29986576591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30020130993 and 30020131011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020131723) 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 7 ways as a sum of consecutive naturals, for example, 3835965 + ... + 3843782.

It is an arithmetic number, because the mean of its divisors is an integer number (5007195696).

Almost surely, 230020131023 is an apocalyptic number.

30020131023 is a deficient number, since it is larger than the sum of its proper divisors (10037434545).

30020131023 is a wasteful number, since it uses less digits than its factorization.

30020131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7681053.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30020131023 its reverse (32013102003), we get a palindrome (62033233026).

The spelling of 30020131023 in words is "thirty billion, twenty million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 3 1303 3909 7679747 23039241 10006710341 30020131023