Base | Representation |
---|---|
bin | 11100000011011111… |
… | …011100000010110011 |
3 | 2212202100101102121022 |
4 | 130003133130002303 |
5 | 443143034002201 |
6 | 21501035450055 |
7 | 2114325125333 |
oct | 340337340263 |
9 | 85670342538 |
10 | 30123344051 |
11 | 1185892a269 |
12 | 5a082b692b |
13 | 2ac0ac0148 |
14 | 165a9950c3 |
15 | bb489041b |
hex | 7037dc0b3 |
30123344051 has 4 divisors (see below), whose sum is σ = 30169055400. Its totient is φ = 30077632704.
The previous prime is 30123344039. The next prime is 30123344057. The reversal of 30123344051 is 15044332103.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15044332103 = 80177 ⋅187639.
It is a cyclic number.
It is not a de Polignac number, because 30123344051 - 218 = 30123081907 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 30123344051.
It is not an unprimeable number, because it can be changed into a prime (30123344057) 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, 22854686 + ... + 22856003.
It is an arithmetic number, because the mean of its divisors is an integer number (7542263850).
Almost surely, 230123344051 is an apocalyptic number.
30123344051 is a deficient number, since it is larger than the sum of its proper divisors (45711349).
30123344051 is an equidigital number, since it uses as much as digits as its factorization.
30123344051 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 45711348.
The product of its (nonzero) digits is 4320, while the sum is 26.
Adding to 30123344051 its reverse (15044332103), we get a palindrome (45167676154).
The spelling of 30123344051 in words is "thirty billion, one hundred twenty-three million, three hundred forty-four thousand, fifty-one".
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