Search a number
-
+
51332253 = 372349199
BaseRepresentation
bin1100001111010…
…0010010011101
310120120221121120
43003310102131
5101120113003
65032121153
71162213500
oct303642235
9116527546
1051332253
1126a80755
12152361b9
13a83391b
146b63137
15478e853
hex30f449d

51332253 has 12 divisors (see below), whose sum is σ = 79617600. Its totient is φ = 29332632.

The previous prime is 51332227. The next prime is 51332269. The reversal of 51332253 is 35223315.

It is a happy number.

51332253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51332253 - 25 = 51332221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51332273) 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 11 ways as a sum of consecutive naturals, for example, 174453 + ... + 174746.

It is an arithmetic number, because the mean of its divisors is an integer number (6634800).

Almost surely, 251332253 is an apocalyptic number.

It is an amenable number.

51332253 is a deficient number, since it is larger than the sum of its proper divisors (28285347).

51332253 is a wasteful number, since it uses less digits than its factorization.

51332253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349216 (or 349209 counting only the distinct ones).

The product of its digits is 2700, while the sum is 24.

The square root of 51332253 is about 7164.6530271884. The cubic root of 51332253 is about 371.6465526550.

Adding to 51332253 its reverse (35223315), we get a palindrome (86555568).

The spelling of 51332253 in words is "fifty-one million, three hundred thirty-two thousand, two hundred fifty-three".

Divisors: 1 3 7 21 49 147 349199 1047597 2444393 7333179 17110751 51332253