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51774206 = 2112213943
BaseRepresentation
bin1100010110000…
…0001011111110
310121102101212012
43011200023332
5101223233311
65045411222
71166034131
oct305401376
9117371765
1051774206
1127252800
1215409b12
13a959b33
146c3a218
15482a78b
hex31602fe

51774206 has 12 divisors (see below), whose sum is σ = 85363656. Its totient is φ = 23533620.

The previous prime is 51774199. The next prime is 51774209. The reversal of 51774206 is 60247715.

51774206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51774209) 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 5 ways as a sum of consecutive naturals, for example, 106730 + ... + 107213.

It is an arithmetic number, because the mean of its divisors is an integer number (7113638).

Almost surely, 251774206 is an apocalyptic number.

51774206 is a deficient number, since it is larger than the sum of its proper divisors (33589450).

51774206 is a wasteful number, since it uses less digits than its factorization.

51774206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213967 (or 213956 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 51774206 is about 7195.4295215783. The cubic root of 51774206 is about 372.7100891362.

The spelling of 51774206 in words is "fifty-one million, seven hundred seventy-four thousand, two hundred six".

Divisors: 1 2 11 22 121 242 213943 427886 2353373 4706746 25887103 51774206