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30111111029 = 73757544889
BaseRepresentation
bin11100000010110000…
…110001011101110101
32212201111100221001102
4130002300301131311
5443131421023104
621455521335445
72114116135466
oct340260613565
985644327042
1030111111029
1111851a3442a
125a04197585
132abb3c907c
1416590ccd6d
15bb3775a1e
hex702c31775

30111111029 has 8 divisors (see below), whose sum is σ = 30563969880. Its totient is φ = 29659343616.

The previous prime is 30111110993. The next prime is 30111111049. The reversal of 30111111029 is 92011111103.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6662314129 + 23448796900 = 81623^2 + 153130^2 .

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-30111111029 is a prime.

It is a super-3 number, since 3×301111110293 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30111111029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30111111049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217184 + ... + 327705.

It is an arithmetic number, because the mean of its divisors is an integer number (3820496235).

Almost surely, 230111111029 is an apocalyptic number.

It is an amenable number.

30111111029 is a deficient number, since it is larger than the sum of its proper divisors (452858851).

30111111029 is an equidigital number, since it uses as much as digits as its factorization.

30111111029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545719.

The product of its (nonzero) digits is 54, while the sum is 20.

The spelling of 30111111029 in words is "thirty billion, one hundred eleven million, one hundred eleven thousand, twenty-nine".

Divisors: 1 73 757 55261 544889 39776897 412480973 30111111029