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30140430231 = 355718037361
BaseRepresentation
bin11100000100100000…
…100111011110010111
32212210112112111102210
4130010200213132113
5443211422231411
621502450004503
72114623300302
oct340440473627
985715474383
1030140430231
111186753a37a
125a11b76733
132ac44c3202
14165cd61b39
15bb6117ca6
hex704827797

30140430231 has 8 divisors (see below), whose sum is σ = 40259391984. Its totient is φ = 20057544320.

The previous prime is 30140430217. The next prime is 30140430241. The reversal of 30140430231 is 13203404103.

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 30140430231 - 26 = 30140430167 is a prime.

It is a super-2 number, since 2×301404302312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30140430198 and 30140430207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140430241) 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, 9017010 + ... + 9020351.

It is an arithmetic number, because the mean of its divisors is an integer number (5032423998).

Almost surely, 230140430231 is an apocalyptic number.

30140430231 is a deficient number, since it is larger than the sum of its proper divisors (10118961753).

30140430231 is a wasteful number, since it uses less digits than its factorization.

30140430231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18037921.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 30140430231 its reverse (13203404103), we get a palindrome (43343834334).

The spelling of 30140430231 in words is "thirty billion, one hundred forty million, four hundred thirty thousand, two hundred thirty-one".

Divisors: 1 3 557 1671 18037361 54112083 10046810077 30140430231