Search a number
-
+
30142242203 = 53568721551
BaseRepresentation
bin11100000100100111…
…100001110110011011
32212210122221112222212
4130010213201312123
5443212403222303
621502552505335
72114644555103
oct340447416633
985718845885
1030142242203
1111868567777
125a126ab24b
132ac49a8b98
14165d2b4203
15bb6374ad8
hex7049e1d9b

30142242203 has 4 divisors (see below), whose sum is σ = 30710963808. Its totient is φ = 29573520600.

The previous prime is 30142242197. The next prime is 30142242209. The reversal of 30142242203 is 30224224103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30224224103 = 191590748637.

It is an interprime number because it is at equal distance from previous prime (30142242197) and next prime (30142242209).

It is a cyclic number.

It is not a de Polignac number, because 30142242203 - 216 = 30142176667 is a prime.

It is a super-3 number, since 3×301422422033 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30142242209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284360723 + ... + 284360828.

It is an arithmetic number, because the mean of its divisors is an integer number (7677740952).

Almost surely, 230142242203 is an apocalyptic number.

30142242203 is a deficient number, since it is larger than the sum of its proper divisors (568721605).

30142242203 is an equidigital number, since it uses as much as digits as its factorization.

30142242203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568721604.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30142242203 its reverse (30224224103), we get a palindrome (60366466306).

The spelling of 30142242203 in words is "thirty billion, one hundred forty-two million, two hundred forty-two thousand, two hundred three".

Divisors: 1 53 568721551 30142242203