Base | Representation |
---|---|
bin | 111001011010… |
… | …0111000111011 |
3 | 2002122021212202 |
4 | 1302310320323 |
5 | 30201213201 |
6 | 2553100415 |
7 | 513566111 |
oct | 162647073 |
9 | 62567782 |
10 | 30101051 |
11 | 15a9a402 |
12 | a0b770b |
13 | 630bc96 |
14 | 3dd7ab1 |
15 | 2998c6b |
hex | 1cb4e3b |
30101051 has 2 divisors, whose sum is σ = 30101052. Its totient is φ = 30101050.
The previous prime is 30101041. The next prime is 30101069. The reversal of 30101051 is 15010103.
It is a weak prime.
It is an emirp because it is prime and its reverse (15010103) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30101051 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30101021) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15050525 + 15050526.
It is an arithmetic number, because the mean of its divisors is an integer number (15050526).
Almost surely, 230101051 is an apocalyptic number.
30101051 is a deficient number, since it is larger than the sum of its proper divisors (1).
30101051 is an equidigital number, since it uses as much as digits as its factorization.
30101051 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 15, while the sum is 11.
The square root of 30101051 is about 5486.4424721307. The cubic root of 30101051 is about 311.0717362253.
Adding to 30101051 its reverse (15010103), we get a palindrome (45111154).
The spelling of 30101051 in words is "thirty million, one hundred one thousand, fifty-one".
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