Base | Representation |
---|---|
bin | 11100001110110100… |
… | …000100110010101101 |
3 | 2220020120211100120211 |
4 | 130032310010302231 |
5 | 444040201200323 |
6 | 21531543142421 |
7 | 2122122553204 |
oct | 341664046255 |
9 | 86216740524 |
10 | 30313303213 |
11 | 11946084406 |
12 | 5a5ba44a11 |
13 | 2b2127010b |
14 | 1677cc223b |
15 | bc63b470d |
hex | 70ed04cad |
30313303213 has 4 divisors (see below), whose sum is σ = 30313818208. Its totient is φ = 30312788220.
The previous prime is 30313303199. The next prime is 30313303231. The reversal of 30313303213 is 31230331303.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30313303213 is a prime.
It is a super-2 number, since 2×303133032132 (a number of 22 digits) contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30313306213) 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, 155823 + ... + 291388.
It is an arithmetic number, because the mean of its divisors is an integer number (7578454552).
Almost surely, 230313303213 is an apocalyptic number.
It is an amenable number.
30313303213 is a deficient number, since it is larger than the sum of its proper divisors (514995).
30313303213 is an equidigital number, since it uses as much as digits as its factorization.
30313303213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 514994.
The product of its (nonzero) digits is 1458, while the sum is 22.
Adding to 30313303213 its reverse (31230331303), we get a palindrome (61543634516).
The spelling of 30313303213 in words is "thirty billion, three hundred thirteen million, three hundred three thousand, two hundred thirteen".
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