Base | Representation |
---|---|
bin | 111001110100… |
… | …0110100001101 |
3 | 2010001002122011 |
4 | 1303220310031 |
5 | 30230014431 |
6 | 3001421221 |
7 | 515443153 |
oct | 163506415 |
9 | 63032564 |
10 | 30313741 |
11 | 16125187 |
12 | a19a811 |
13 | 6384a33 |
14 | 40513d3 |
15 | 29dbcb1 |
hex | 1ce8d0d |
30313741 has 2 divisors, whose sum is σ = 30313742. Its totient is φ = 30313740.
The previous prime is 30313739. The next prime is 30313763. The reversal of 30313741 is 14731303.
It is a happy number.
It is an a-pointer prime, because the next prime (30313763) can be obtained adding 30313741 to its sum of digits (22).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 16281225 + 14032516 = 4035^2 + 3746^2 .
It is a cyclic number.
It is not a de Polignac number, because 30313741 - 21 = 30313739 is a prime.
Together with 30313739, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30313711) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156870 + 15156871.
It is an arithmetic number, because the mean of its divisors is an integer number (15156871).
Almost surely, 230313741 is an apocalyptic number.
It is an amenable number.
30313741 is a deficient number, since it is larger than the sum of its proper divisors (1).
30313741 is an equidigital number, since it uses as much as digits as its factorization.
30313741 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 756, while the sum is 22.
The square root of 30313741 is about 5505.7915870472. The cubic root of 30313741 is about 311.8026810923.
The spelling of 30313741 in words is "thirty million, three hundred thirteen thousand, seven hundred forty-one".
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