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51793197 = 319518849
BaseRepresentation
bin1100010110010…
…0110100101101
310121110100220120
43011210310231
5101224340242
65050035153
71166143401
oct305446455
9117410816
1051793197
1127265aa5
1215418ab9
13a965681
146c43101
1548311ec
hex3164d2d

51793197 has 8 divisors (see below), whose sum is σ = 69100800. Its totient is φ = 34507200.

The previous prime is 51793187. The next prime is 51793321. The reversal of 51793197 is 79139715.

51793197 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 not a de Polignac number, because 51793197 - 211 = 51791149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51793117) 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, 1429 + ... + 10277.

It is an arithmetic number, because the mean of its divisors is an integer number (8637600).

Almost surely, 251793197 is an apocalyptic number.

It is an amenable number.

51793197 is a deficient number, since it is larger than the sum of its proper divisors (17307603).

51793197 is a wasteful number, since it uses less digits than its factorization.

51793197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10803.

The product of its digits is 59535, while the sum is 42.

The square root of 51793197 is about 7196.7490577343. The cubic root of 51793197 is about 372.7556541167.

The spelling of 51793197 in words is "fifty-one million, seven hundred ninety-three thousand, one hundred ninety-seven".

Divisors: 1 3 1951 5853 8849 26547 17264399 51793197