Search a number
-
+
30002131003 = 132307856231
BaseRepresentation
bin11011111100010001…
…000011000000111011
32212102220022011120011
4123330101003000323
5442421021143003
621441025442351
72111323622455
oct337421030073
985386264504
1030002131003
11117a646a099
1259937a03b7
132aa1960050
1416488412d5
15ba8dea46d
hex6fc44303b

30002131003 has 4 divisors (see below), whose sum is σ = 32309987248. Its totient is φ = 27694274760.

The previous prime is 30002131001. The next prime is 30002131007. The reversal of 30002131003 is 30013120003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30002131003 - 21 = 30002131001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 2307856231 = 30002131003 / (3 + 0 + 0 + 0 + 2 + 1 + 3 + 1 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30002131001) 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 3 ways as a sum of consecutive naturals, for example, 1153928103 + ... + 1153928128.

It is an arithmetic number, because the mean of its divisors is an integer number (8077496812).

Almost surely, 230002131003 is an apocalyptic number.

30002131003 is a deficient number, since it is larger than the sum of its proper divisors (2307856245).

30002131003 is a wasteful number, since it uses less digits than its factorization.

30002131003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307856244.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 30002131003 its reverse (30013120003), we get a palindrome (60015251006).

The spelling of 30002131003 in words is "thirty billion, two million, one hundred thirty-one thousand, three".

Divisors: 1 13 2307856231 30002131003