Base | Representation |
---|---|
bin | 111010110100… |
… | …1100110100101 |
3 | 2011000220020122 |
4 | 1311221212211 |
5 | 30343410003 |
6 | 3021011325 |
7 | 523101122 |
oct | 165514645 |
9 | 64026218 |
10 | 30841253 |
11 | 16455543 |
12 | a3b3b45 |
13 | 650ab81 |
14 | 414b749 |
15 | 2a93238 |
hex | 1d699a5 |
30841253 has 2 divisors, whose sum is σ = 30841254. Its totient is φ = 30841252.
The previous prime is 30841241. The next prime is 30841267. The reversal of 30841253 is 35214803.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 22448644 + 8392609 = 4738^2 + 2897^2 .
It is a cyclic number.
It is not a de Polignac number, because 30841253 - 26 = 30841189 is a prime.
It is a super-2 number, since 2×308412532 = 1902365773220018, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (30841453) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15420626 + 15420627.
It is an arithmetic number, because the mean of its divisors is an integer number (15420627).
Almost surely, 230841253 is an apocalyptic number.
It is an amenable number.
30841253 is a deficient number, since it is larger than the sum of its proper divisors (1).
30841253 is an equidigital number, since it uses as much as digits as its factorization.
30841253 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2880, while the sum is 26.
The square root of 30841253 is about 5553.4901638519. The cubic root of 30841253 is about 313.6009271554.
The spelling of 30841253 in words is "thirty million, eight hundred forty-one thousand, two hundred fifty-three".
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