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171113 = 1371249
BaseRepresentation
bin101001110001101001
322200201112
4221301221
520433423
63400105
71311605
oct516151
9280645
10171113
11107618
1283035
135cb67
1446505
1535a78
hex29c69

171113 has 4 divisors (see below), whose sum is σ = 172500. Its totient is φ = 169728.

The previous prime is 171103. The next prime is 171131. The reversal of 171113 is 311171.

Adding to 171113 its reverse (311171), we get a palindrome (482284).

171113 = 2922 + 2932.

171113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311171 = 744453.

It can be written as a sum of positive squares in 2 ways, for example, as 85264 + 85849 = 292^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 171113 - 26 = 171049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488 + ... + 761.

It is an arithmetic number, because the mean of its divisors is an integer number (43125).

2171113 is an apocalyptic number.

171113 is the 293-rd centered square number.

It is an amenable number.

171113 is a deficient number, since it is larger than the sum of its proper divisors (1387).

171113 is a wasteful number, since it uses less digits than its factorization.

171113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386.

The product of its digits is 21, while the sum is 14.

The square root of 171113 is about 413.6580713585. The cubic root of 171113 is about 55.5172145826.

The spelling of 171113 in words is "one hundred seventy-one thousand, one hundred thirteen".

Divisors: 1 137 1249 171113