Base | Representation |
---|---|
bin | 111010000010… |
… | …0010100101111 |
3 | 2010020211012021 |
4 | 1310010110233 |
5 | 30242121130 |
6 | 3004051011 |
7 | 516422515 |
oct | 164042457 |
9 | 63224167 |
10 | 30426415 |
11 | 161a18a8 |
12 | a233a67 |
13 | 63c40c6 |
14 | 40804b5 |
15 | 2a1037a |
hex | 1d0452f |
30426415 has 4 divisors (see below), whose sum is σ = 36511704. Its totient is φ = 24341128.
The previous prime is 30426397. The next prime is 30426419. The reversal of 30426415 is 51462403.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51462403 = 3673 ⋅14011.
It is a cyclic number.
It is not a de Polignac number, because 30426415 - 219 = 29902127 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 30426415.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30426419) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3042637 + ... + 3042646.
It is an arithmetic number, because the mean of its divisors is an integer number (9127926).
Almost surely, 230426415 is an apocalyptic number.
30426415 is a deficient number, since it is larger than the sum of its proper divisors (6085289).
30426415 is an equidigital number, since it uses as much as digits as its factorization.
30426415 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6085288.
The product of its (nonzero) digits is 2880, while the sum is 25.
The square root of 30426415 is about 5516.0144125990. The cubic root of 30426415 is about 312.1885195055.
Adding to 30426415 its reverse (51462403), we get a palindrome (81888818).
The spelling of 30426415 in words is "thirty million, four hundred twenty-six thousand, four hundred fifteen".
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