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51103255 = 571976847
BaseRepresentation
bin1100001011110…
…0011000010111
310120011022111011
43002330120113
5101040301010
65023153051
71160241040
oct302743027
9116138434
1051103255
11269346a5
1215145787
13a783618
146b038c7
154746a8a
hex30bc617

51103255 has 16 divisors (see below), whose sum is σ = 73774080. Its totient is φ = 33197472.

The previous prime is 51103243. The next prime is 51103259. The reversal of 51103255 is 55230115.

51103255 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 51103255 - 211 = 51101207 is a prime.

It is a super-2 number, since 2×511032552 = 5223085343190050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51103259) 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 15 ways as a sum of consecutive naturals, for example, 37759 + ... + 39088.

It is an arithmetic number, because the mean of its divisors is an integer number (4610880).

Almost surely, 251103255 is an apocalyptic number.

51103255 is a deficient number, since it is larger than the sum of its proper divisors (22670825).

51103255 is a wasteful number, since it uses less digits than its factorization.

51103255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76878.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 51103255 is about 7148.6540691238. The cubic root of 51103255 is about 371.0930787497.

The spelling of 51103255 in words is "fifty-one million, one hundred three thousand, two hundred fifty-five".

Divisors: 1 5 7 19 35 95 133 665 76847 384235 537929 1460093 2689645 7300465 10220651 51103255