Base | Representation |
---|---|
bin | 11010001000010… |
… | …011110101010001 |
3 | 1010112220022112120 |
4 | 122020103311101 |
5 | 1344211323001 |
6 | 111300044453 |
7 | 13602135204 |
oct | 3210236521 |
9 | 1115808476 |
10 | 438386001 |
11 | 205503989 |
12 | 102993729 |
13 | 6ca91601 |
14 | 4231793b |
15 | 28747236 |
hex | 1a213d51 |
438386001 has 4 divisors (see below), whose sum is σ = 584514672. Its totient is φ = 292257332.
The previous prime is 438385991. The next prime is 438386009. The reversal of 438386001 is 100683834.
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.
It is a cyclic number.
It is not a de Polignac number, because 438386001 - 215 = 438353233 is a prime.
It is not an unprimeable number, because it can be changed into a prime (438386009) 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, 73064331 + ... + 73064336.
It is an arithmetic number, because the mean of its divisors is an integer number (146128668).
Almost surely, 2438386001 is an apocalyptic number.
It is an amenable number.
438386001 is a deficient number, since it is larger than the sum of its proper divisors (146128671).
438386001 is a wasteful number, since it uses less digits than its factorization.
438386001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 146128670.
The product of its (nonzero) digits is 13824, while the sum is 33.
The square root of 438386001 is about 20937.6694261802. The cubic root of 438386001 is about 759.6593585388.
The spelling of 438386001 in words is "four hundred thirty-eight million, three hundred eighty-six thousand, one".
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