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171130047 = 31138913331
BaseRepresentation
bin10100011001100…
…11110010111111
3102221000022021220
422030303302333
5322302130142
624551524423
74145403264
oct1214636277
9387008256
10171130047
11886645a0
1249389713
13295b97aa
1418a2926b
15100552ec
hexa333cbf

171130047 has 16 divisors (see below), whose sum is σ = 249575040. Its totient is φ = 103440800.

The previous prime is 171130033. The next prime is 171130049. The reversal of 171130047 is 740031171.

It is a cyclic number.

It is not a de Polignac number, because 171130047 - 218 = 170867903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 171129999 and 171130026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171130049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6172 + ... + 19502.

It is an arithmetic number, because the mean of its divisors is an integer number (15598440).

Almost surely, 2171130047 is an apocalyptic number.

171130047 is a deficient number, since it is larger than the sum of its proper divisors (78444993).

171130047 is a wasteful number, since it uses less digits than its factorization.

171130047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13734.

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 171130047 is about 13081.6683569031. The cubic root of 171130047 is about 555.1905814119.

The spelling of 171130047 in words is "one hundred seventy-one million, one hundred thirty thousand, forty-seven".

Divisors: 1 3 11 33 389 1167 4279 12837 13331 39993 146641 439923 5185759 15557277 57043349 171130047