Base | Representation |
---|---|
bin | 1100001010100… |
… | …1010100111011 |
3 | 10120000100102122 |
4 | 3002221110323 |
5 | 101030301321 |
6 | 5021351455 |
7 | 1156464356 |
oct | 302512473 |
9 | 116010378 |
10 | 51025211 |
11 | 26890aa6 |
12 | 1510858b |
13 | a756c43 |
14 | 6ac329d |
15 | 472d8ab |
hex | 30a953b |
51025211 has 8 divisors (see below), whose sum is σ = 54145584. Its totient is φ = 47918080.
The previous prime is 51025207. The next prime is 51025223. The reversal of 51025211 is 11252015.
51025211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 51025211 - 22 = 51025207 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17).
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 51025211.
It is not an unprimeable number, because it can be changed into a prime (51025291) 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 7 ways as a sum of consecutive naturals, for example, 5291 + ... + 11403.
It is an arithmetic number, because the mean of its divisors is an integer number (6768198).
Almost surely, 251025211 is an apocalyptic number.
51025211 is a deficient number, since it is larger than the sum of its proper divisors (3120373).
51025211 is a wasteful number, since it uses less digits than its factorization.
51025211 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6621.
The product of its (nonzero) digits is 100, while the sum is 17.
The square root of 51025211 is about 7143.1933335169. The cubic root of 51025211 is about 370.9040735420.
Adding to 51025211 its reverse (11252015), we get a palindrome (62277226).
The spelling of 51025211 in words is "fifty-one million, twenty-five thousand, two hundred eleven".
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