Base | Representation |
---|---|
bin | 111010011011… |
… | …1010011001101 |
3 | 2010122102121112 |
4 | 1310313103031 |
5 | 30320311323 |
6 | 3012341405 |
7 | 521252330 |
oct | 164672315 |
9 | 63572545 |
10 | 30635213 |
11 | 16324764 |
12 | a314865 |
13 | 646815b |
14 | 40d6617 |
15 | 2a52178 |
hex | 1d374cd |
30635213 has 8 divisors (see below), whose sum is σ = 35333760. Its totient is φ = 26017200.
The previous prime is 30635191. The next prime is 30635243. The reversal of 30635213 is 31253603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30635213 - 214 = 30618829 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30635243) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19313 + ... + 20838.
It is an arithmetic number, because the mean of its divisors is an integer number (4416720).
Almost surely, 230635213 is an apocalyptic number.
It is an amenable number.
30635213 is a deficient number, since it is larger than the sum of its proper divisors (4698547).
30635213 is a wasteful number, since it uses less digits than its factorization.
30635213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40267.
The product of its (nonzero) digits is 1620, while the sum is 23.
The square root of 30635213 is about 5534.9085809975. The cubic root of 30635213 is about 312.9010122253.
Adding to 30635213 its reverse (31253603), we get a palindrome (61888816).
The spelling of 30635213 in words is "thirty million, six hundred thirty-five thousand, two hundred thirteen".
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