Search a number
-
+
51227441 is a prime number
BaseRepresentation
bin1100001101101…
…0101100110001
310120101121211122
43003122230301
5101103234231
65025552025
71161266066
oct303325461
9116347748
1051227441
1126a09a31
12151a5615
13a7c7cc5
146b36c6d
15476d77b
hex30dab31

51227441 has 2 divisors, whose sum is σ = 51227442. Its totient is φ = 51227440.

The previous prime is 51227431. The next prime is 51227459. The reversal of 51227441 is 14472215.

51227441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50353216 + 874225 = 7096^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 51227441 - 218 = 50965297 is a prime.

It is a super-2 number, since 2×512274412 = 5248501422816962, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51227441.

It is not a weakly prime, because it can be changed into another prime (51227431) 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 as a sum of consecutive naturals, namely, 25613720 + 25613721.

It is an arithmetic number, because the mean of its divisors is an integer number (25613721).

Almost surely, 251227441 is an apocalyptic number.

It is an amenable number.

51227441 is a deficient number, since it is larger than the sum of its proper divisors (1).

51227441 is an equidigital number, since it uses as much as digits as its factorization.

51227441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2240, while the sum is 26.

The square root of 51227441 is about 7157.3347693118. The cubic root of 51227441 is about 371.3934332989.

Adding to 51227441 its reverse (14472215), we get a palindrome (65699656).

The spelling of 51227441 in words is "fifty-one million, two hundred twenty-seven thousand, four hundred forty-one".