Search a number
-
+
51041361 = 3717142973
BaseRepresentation
bin1100001010110…
…1010001010001
310120001011120210
43002231101101
5101031310421
65021554333
71156562430
oct302552121
9116034523
1051041361
11268a2148
12151159a9
13a7613b7
146ac9117
154733576
hex30ad451

51041361 has 16 divisors (see below), whose sum is σ = 82353024. Its totient is φ = 27450624.

The previous prime is 51041339. The next prime is 51041369. The reversal of 51041361 is 16314015.

It is not a de Polignac number, because 51041361 - 26 = 51041297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (51041369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71130 + ... + 71843.

It is an arithmetic number, because the mean of its divisors is an integer number (5147064).

Almost surely, 251041361 is an apocalyptic number.

51041361 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

51041361 is a deficient number, since it is larger than the sum of its proper divisors (31311663).

51041361 is a wasteful number, since it uses less digits than its factorization.

51041361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143000.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 51041361 is about 7144.3236908752. The cubic root of 51041361 is about 370.9432010557.

Adding to 51041361 its reverse (16314015), we get a palindrome (67355376).

The spelling of 51041361 in words is "fifty-one million, forty-one thousand, three hundred sixty-one".

Divisors: 1 3 7 17 21 51 119 357 142973 428919 1000811 2430541 3002433 7291623 17013787 51041361