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51270373 = 7113147457
BaseRepresentation
bin1100001110010…
…1001011100101
310120110210201201
43003211023211
5101111122443
65030522501
71161535210
oct303451345
9116423651
1051270373
1126a39210
1215206431
13a8116cb
146b48777
15477b34d
hex30e52e5

51270373 has 32 divisors (see below), whose sum is σ = 67534848. Its totient is φ = 37756800.

The previous prime is 51270367. The next prime is 51270397. The reversal of 51270373 is 37307215.

51270373 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 51270373 - 29 = 51269861 is a prime.

It is a super-2 number, since 2×512703732 = 5257302295118258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51270353) 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 31 ways as a sum of consecutive naturals, for example, 111961 + ... + 112417.

It is an arithmetic number, because the mean of its divisors is an integer number (2110464).

Almost surely, 251270373 is an apocalyptic number.

It is an amenable number.

51270373 is a deficient number, since it is larger than the sum of its proper divisors (16264475).

51270373 is a wasteful number, since it uses less digits than its factorization.

51270373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 51270373 is about 7160.3333022982. Note that the first 4 decimals coincide. The cubic root of 51270373 is about 371.4971551221.

Adding to 51270373 its reverse (37307215), we get a palindrome (88577588).

The spelling of 51270373 in words is "fifty-one million, two hundred seventy thousand, three hundred seventy-three".

Divisors: 1 7 11 31 47 77 217 329 341 457 517 1457 2387 3199 3619 5027 10199 14167 16027 21479 35189 99169 112189 150353 155837 236269 665849 1090859 1653883 4660943 7324339 51270373