Search a number
-
+
30111132145 = 557371049717
BaseRepresentation
bin11100000010110000…
…110110100111110001
32212201111102000000111
4130002300312213301
5443131422212040
621455522021321
72114116254163
oct340260664761
985644360014
1030111132145
1111851a49286
125a041a7841
132abb405873
1416590d6933
15bb377bdea
hex702c369f1

30111132145 has 8 divisors (see below), whose sum is σ = 36139691304. Its totient is φ = 24084683904.

The previous prime is 30111132143. The next prime is 30111132169. The reversal of 30111132145 is 54123111103.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3839909089 + 26271223056 = 61967^2 + 162084^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30111132145 - 21 = 30111132143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30111132143) 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, 496174 + ... + 553543.

It is an arithmetic number, because the mean of its divisors is an integer number (4517461413).

Almost surely, 230111132145 is an apocalyptic number.

It is an amenable number.

30111132145 is a deficient number, since it is larger than the sum of its proper divisors (6028559159).

30111132145 is a wasteful number, since it uses less digits than its factorization.

30111132145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055459.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 30111132145 its reverse (54123111103), we get a palindrome (84234243248).

The spelling of 30111132145 in words is "thirty billion, one hundred eleven million, one hundred thirty-two thousand, one hundred forty-five".

Divisors: 1 5 5737 28685 1049717 5248585 6022226429 30111132145