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30003213001 = 40973357489
BaseRepresentation
bin11011111100010101…
…001011001011001001
32212102222100010210011
4123330111023023021
5442421310304001
621441104551521
72111336050126
oct337425131311
985388303704
1030003213001
11117a7039003
1259940225a1
132aa1c4b698
141648a4374d
15ba9060d51
hex6fc54b2c9

30003213001 has 4 divisors (see below), whose sum is σ = 30076570900. Its totient is φ = 29929855104.

The previous prime is 30003212999. The next prime is 30003213043. The reversal of 30003213001 is 10031230003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10031230003 = 27673625309.

It can be written as a sum of positive squares in 2 ways, for example, as 27763557376 + 2239655625 = 166624^2 + 47325^2 .

It is a cyclic number.

It is not a de Polignac number, because 30003213001 - 21 = 30003212999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30003283001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36678336 + ... + 36679153.

It is an arithmetic number, because the mean of its divisors is an integer number (7519142725).

Almost surely, 230003213001 is an apocalyptic number.

It is an amenable number.

30003213001 is a deficient number, since it is larger than the sum of its proper divisors (73357899).

30003213001 is an equidigital number, since it uses as much as digits as its factorization.

30003213001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73357898.

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

Adding to 30003213001 its reverse (10031230003), we get a palindrome (40034443004).

The spelling of 30003213001 in words is "thirty billion, three million, two hundred thirteen thousand, one".

Divisors: 1 409 73357489 30003213001