Base | Representation |
---|---|
bin | 111001111101… |
… | …0001100100001 |
3 | 2010011201021202 |
4 | 1303322030201 |
5 | 30234304204 |
6 | 3003130545 |
7 | 516160541 |
oct | 163721441 |
9 | 63151252 |
10 | 30384929 |
11 | 16173713 |
12 | a213a55 |
13 | 63ab263 |
14 | 406d321 |
15 | 2a02e1e |
hex | 1cfa321 |
30384929 has 4 divisors (see below), whose sum is σ = 31365120. Its totient is φ = 29404740.
The previous prime is 30384919. The next prime is 30384943. The reversal of 30384929 is 92948303.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92948303 = 7 ⋅13278329.
It is not a de Polignac number, because 30384929 - 220 = 29336353 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 30384892 and 30384901.
It is not an unprimeable number, because it can be changed into a prime (30384919) 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 in 3 ways as a sum of consecutive naturals, for example, 490049 + ... + 490110.
It is an arithmetic number, because the mean of its divisors is an integer number (7841280).
Almost surely, 230384929 is an apocalyptic number.
It is an amenable number.
30384929 is a deficient number, since it is larger than the sum of its proper divisors (980191).
30384929 is an equidigital number, since it uses as much as digits as its factorization.
30384929 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 980190.
The product of its (nonzero) digits is 46656, while the sum is 38.
The square root of 30384929 is about 5512.2526248350. The cubic root of 30384929 is about 312.0465667126.
It can be divided in two parts, 30384 and 929, that added together give a palindrome (31313).
The spelling of 30384929 in words is "thirty million, three hundred eighty-four thousand, nine hundred twenty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.077 sec. • engine limits •