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51116293 = 433733187
BaseRepresentation
bin1100001011111…
…1100100000101
310120011222101001
43002333210011
5101041210133
65023333301
71160324044
oct302774405
9116158331
1051116293
1126943478
1215151231
13a789537
146b0855b
15474a87d
hex30bf905

51116293 has 8 divisors (see below), whose sum is σ = 52461728. Its totient is φ = 49778064.

The previous prime is 51116269. The next prime is 51116323. The reversal of 51116293 is 39261115.

51116293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51116293 - 225 = 17561861 is a prime.

It is a super-2 number, since 2×511162932 = 5225750820123698, 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 (51116393) 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 7 ways as a sum of consecutive naturals, for example, 14446 + ... + 17632.

It is an arithmetic number, because the mean of its divisors is an integer number (6557716).

Almost surely, 251116293 is an apocalyptic number.

It is an amenable number.

51116293 is a deficient number, since it is larger than the sum of its proper divisors (1345435).

51116293 is a wasteful number, since it uses less digits than its factorization.

51116293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3603.

The product of its digits is 1620, while the sum is 28.

The square root of 51116293 is about 7149.5659308800. The cubic root of 51116293 is about 371.1246351228.

The spelling of 51116293 in words is "fifty-one million, one hundred sixteen thousand, two hundred ninety-three".

Divisors: 1 43 373 3187 16039 137041 1188751 51116293