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30142888603 = 59510896417
BaseRepresentation
bin11100000100101001…
…111111101010011011
32212210201011101200121
4130010221333222123
5443213034413403
621503014414111
72114653216462
oct340451775233
985721141617
1030142888603
1111868969393
125a12961337
132ac4b74179
14165d4019d9
15bb64513bd
hex704a7fa9b

30142888603 has 4 divisors (see below), whose sum is σ = 30653785080. Its totient is φ = 29631992128.

The previous prime is 30142888577. The next prime is 30142888609. The reversal of 30142888603 is 30688824103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30688824103 = 74384117729.

It is a cyclic number.

It is not a de Polignac number, because 30142888603 - 217 = 30142757531 is a prime.

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 30142888603.

It is not an unprimeable number, because it can be changed into a prime (30142888609) 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, 255448150 + ... + 255448267.

It is an arithmetic number, because the mean of its divisors is an integer number (7663446270).

Almost surely, 230142888603 is an apocalyptic number.

30142888603 is a deficient number, since it is larger than the sum of its proper divisors (510896477).

30142888603 is an equidigital number, since it uses as much as digits as its factorization.

30142888603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510896476.

The product of its (nonzero) digits is 221184, while the sum is 43.

The spelling of 30142888603 in words is "thirty billion, one hundred forty-two million, eight hundred eighty-eight thousand, six hundred three".

Divisors: 1 59 510896417 30142888603