Search a number
-
+
51301169 = 411112479
BaseRepresentation
bin1100001110110…
…0101100110001
310120112100222022
43003230230301
5101113114134
65031321225
71162024043
oct303545461
9116470868
1051301169
1126a5a367
1215220215
13a82272a
146b55a93
15478552e
hex30ecb31

51301169 has 4 divisors (see below), whose sum is σ = 51317760. Its totient is φ = 51284580.

The previous prime is 51301141. The next prime is 51301207. The reversal of 51301169 is 96110315.

51301169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2k-51301169 is a prime.

It is a super-2 number, since 2×513011692 = 5263619881533122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51301669) 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, 2129 + ... + 10350.

It is an arithmetic number, because the mean of its divisors is an integer number (12829440).

Almost surely, 251301169 is an apocalyptic number.

It is an amenable number.

51301169 is a deficient number, since it is larger than the sum of its proper divisors (16591).

51301169 is a wasteful number, since it uses less digits than its factorization.

51301169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16590.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 51301169 is about 7162.4834380262. The cubic root of 51301169 is about 371.5715212445.

The spelling of 51301169 in words is "fifty-one million, three hundred one thousand, one hundred sixty-nine".

Divisors: 1 4111 12479 51301169