Base | Representation |
---|---|
bin | 111010100010… |
… | …0010001010111 |
3 | 2010202010111022 |
4 | 1311010101113 |
5 | 30324011333 |
6 | 3013431355 |
7 | 521563250 |
oct | 165042127 |
9 | 63663438 |
10 | 30688343 |
11 | 16360674 |
12 | a33b55b |
13 | 64863aa |
14 | 410bb27 |
15 | 2a62c98 |
hex | 1d44457 |
30688343 has 8 divisors (see below), whose sum is σ = 35136288. Its totient is φ = 26256384.
The previous prime is 30688331. The next prime is 30688367. The reversal of 30688343 is 34388603.
30688343 is nontrivially palindromic in base 2.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30688343 - 216 = 30622807 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30688303) 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, 455 + ... + 7847.
It is an arithmetic number, because the mean of its divisors is an integer number (4392036).
Almost surely, 230688343 is an apocalyptic number.
30688343 is a deficient number, since it is larger than the sum of its proper divisors (4447945).
30688343 is an equidigital number, since it uses as much as digits as its factorization.
30688343 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7993.
The product of its (nonzero) digits is 41472, while the sum is 35.
The square root of 30688343 is about 5539.7060391324. The cubic root of 30688343 is about 313.0817936196.
It can be divided in two parts, 3068 and 8343, that added together give a palindrome (11411).
The spelling of 30688343 in words is "thirty million, six hundred eighty-eight thousand, three hundred forty-three".
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