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30112323031 = 74517952349
BaseRepresentation
bin11100000010110101…
…011001010111010111
32212201120122111121101
4130002311121113113
5443132223314111
621500003330531
72114132344150
oct340265312727
985646574541
1030112323031
1111852691a8a
125a04680a47
132abb73192b
141659326927
15bb3914bc1
hex702d595d7

30112323031 has 8 divisors (see below), whose sum is σ = 34421738400. Its totient is φ = 25804821408.

The previous prime is 30112323011. The next prime is 30112323037. The reversal of 30112323031 is 13032321103.

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-30112323031 is a prime.

It is a super-2 number, since 2×301123230312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112323037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444556 + ... + 507793.

It is an arithmetic number, because the mean of its divisors is an integer number (4302717300).

Almost surely, 230112323031 is an apocalyptic number.

30112323031 is a deficient number, since it is larger than the sum of its proper divisors (4309415369).

30112323031 is an equidigital number, since it uses as much as digits as its factorization.

30112323031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956873.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30112323031 its reverse (13032321103), we get a palindrome (43144644134).

The spelling of 30112323031 in words is "thirty billion, one hundred twelve million, three hundred twenty-three thousand, thirty-one".

Divisors: 1 7 4517 31619 952349 6666443 4301760433 30112323031