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30222320031 = 323358035559
BaseRepresentation
bin11100001001011001…
…000000000110011111
32220000020121221010100
4130021121000012133
5443343403220111
621514533112143
72116636324131
oct341131000637
986006557110
1030222320031
11118a97913a2
125a35488653
132b08465807
141669b9b051
15bbd3e1756
hex70964019f

30222320031 has 6 divisors (see below), whose sum is σ = 43654462280. Its totient is φ = 20148213348.

The previous prime is 30222320021. The next prime is 30222320039. The reversal of 30222320031 is 13002322203.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-30222320031 is a prime.

It is a super-2 number, since 2×302223200312 (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 = 30222319986 and 30222320013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222320039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1679017771 + ... + 1679017788.

Almost surely, 230222320031 is an apocalyptic number.

30222320031 is a deficient number, since it is larger than the sum of its proper divisors (13432142249).

30222320031 is a wasteful number, since it uses less digits than its factorization.

30222320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3358035565 (or 3358035562 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30222320031 its reverse (13002322203), we get a palindrome (43224642234).

The spelling of 30222320031 in words is "thirty billion, two hundred twenty-two million, three hundred twenty thousand, thirty-one".

Divisors: 1 3 9 3358035559 10074106677 30222320031