Base | Representation |
---|---|
bin | 11100001010101101… |
… | …101010100110001111 |
3 | 2220001210101111210021 |
4 | 130022231222212033 |
5 | 443420043423231 |
6 | 21521044523011 |
7 | 2120326062133 |
oct | 341255524617 |
9 | 86053344707 |
10 | 30244514191 |
11 | 11910270181 |
12 | 5a409b0467 |
13 | 2b0cc36858 |
14 | 166cad73c3 |
15 | bc0327811 |
hex | 70ab6a98f |
30244514191 has 4 divisors (see below), whose sum is σ = 30324315400. Its totient is φ = 30164712984.
The previous prime is 30244514189. The next prime is 30244514213. The reversal of 30244514191 is 19141544203.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19141544203 = 197 ⋅97165199.
It is a cyclic number.
It is not a de Polignac number, because 30244514191 - 21 = 30244514189 is a prime.
It is the 173910-th Hogben number.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30244514491) by changing a digit.
It is a nontrivial repunit in base 173909.
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, 39900036 + ... + 39900793.
It is an arithmetic number, because the mean of its divisors is an integer number (7581078850).
Almost surely, 230244514191 is an apocalyptic number.
30244514191 is a deficient number, since it is larger than the sum of its proper divisors (79801209).
30244514191 is an equidigital number, since it uses as much as digits as its factorization.
30244514191 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 79801208.
The product of its (nonzero) digits is 17280, while the sum is 34.
The spelling of 30244514191 in words is "thirty billion, two hundred forty-four million, five hundred fourteen thousand, one hundred ninety-one".
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