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173117069 = 172599021
BaseRepresentation
bin10100101000110…
…00111010001101
3110001202020222022
422110120322031
5323304221234
625102255525
74201320326
oct1224307215
9401666868
10173117069
11897a1464
1249b875a5
1329b34048
1418dc544d
15102e8e2e
hexa518e8d

173117069 has 6 divisors (see below), whose sum is σ = 183899754. Its totient is φ = 162933440.

The previous prime is 173117053. The next prime is 173117071. The reversal of 173117069 is 960711371.

It can be written as a sum of positive squares in 3 ways, for example, as 85470025 + 87647044 = 9245^2 + 9362^2 .

It is not a de Polignac number, because 173117069 - 24 = 173117053 is a prime.

It is a super-2 number, since 2×1731170692 = 59939039158301522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173117669) 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, 299222 + ... + 299799.

It is an arithmetic number, because the mean of its divisors is an integer number (30649959).

Almost surely, 2173117069 is an apocalyptic number.

It is an amenable number.

173117069 is a deficient number, since it is larger than the sum of its proper divisors (10782685).

173117069 is an equidigital number, since it uses as much as digits as its factorization.

173117069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599055 (or 599038 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 173117069 is about 13157.3959809683. The cubic root of 173117069 is about 557.3311240863.

The spelling of 173117069 in words is "one hundred seventy-three million, one hundred seventeen thousand, sixty-nine".

Divisors: 1 17 289 599021 10183357 173117069