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51116303 = 731235559
BaseRepresentation
bin1100001011111…
…1100100001111
310120011222101102
43002333210033
5101041210203
65023333315
71160324060
oct302774417
9116158342
1051116303
1126943487
121515123b
13a789544
146b08567
15474a888
hex30bf90f

51116303 has 8 divisors (see below), whose sum is σ = 60303360. Its totient is φ = 42400440.

The previous prime is 51116269. The next prime is 51116323. The reversal of 51116303 is 30361115.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51116303 - 28 = 51116047 is a prime.

It is a super-2 number, since 2×511163032 = 5225752864775618, 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 (51116323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117563 + ... + 117996.

It is an arithmetic number, because the mean of its divisors is an integer number (7537920).

Almost surely, 251116303 is an apocalyptic number.

51116303 is a deficient number, since it is larger than the sum of its proper divisors (9187057).

51116303 is a wasteful number, since it uses less digits than its factorization.

51116303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235597.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 51116303 is about 7149.5666302231. The cubic root of 51116303 is about 371.1246593241.

Adding to 51116303 its reverse (30361115), we get a palindrome (81477418).

The spelling of 51116303 in words is "fifty-one million, one hundred sixteen thousand, three hundred three".

Divisors: 1 7 31 217 235559 1648913 7302329 51116303