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30113320031 = 149699128909
BaseRepresentation
bin11100000010111001…
…001100110001011111
32212201122112011020022
4130002321030301133
5443133002220111
621500040542355
72114143665644
oct340271146137
985648464208
1030113320031
1111853203053
125a04a819bb
132abb9c0682
141659505dcb
15bb3a602db
hex702e4cc5f

30113320031 has 8 divisors (see below), whose sum is σ = 30320808000. Its totient is φ = 29905904160.

The previous prime is 30113320021. The next prime is 30113320049. The reversal of 30113320031 is 13002331103.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30113320031 is a prime.

It is a super-2 number, since 2×301133200312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30113319991 and 30113320009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30113320021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1027205 + ... + 1056113.

It is an arithmetic number, because the mean of its divisors is an integer number (3790101000).

Almost surely, 230113320031 is an apocalyptic number.

30113320031 is a deficient number, since it is larger than the sum of its proper divisors (207487969).

30113320031 is a wasteful number, since it uses less digits than its factorization.

30113320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36049.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30113320031 its reverse (13002331103), we get a palindrome (43115651134).

The spelling of 30113320031 in words is "thirty billion, one hundred thirteen million, three hundred twenty thousand, thirty-one".

Divisors: 1 149 6991 28909 1041659 4307441 202102819 30113320031