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173140 = 22511787
BaseRepresentation
bin101010010001010100
322210111121
4222101110
521020030
63413324
71320532
oct522124
9283447
10173140
111090a0
1284244
1360a66
1447152
153647a
hex2a454

173140 has 24 divisors (see below), whose sum is σ = 397152. Its totient is φ = 62880.

The previous prime is 173137. The next prime is 173141. The reversal of 173140 is 41371.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174 + ... + 613.

It is an arithmetic number, because the mean of its divisors is an integer number (16548).

2173140 is an apocalyptic number.

173140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

173140 is an abundant number, since it is smaller than the sum of its proper divisors (224012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173140 is a wasteful number, since it uses less digits than its factorization.

173140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 173140 is about 416.1009492900. The cubic root of 173140 is about 55.7355730933.

Subtracting from 173140 its product of nonzero digits (84), we obtain a square (173056 = 4162).

Subtracting from 173140 its reverse (41371), we obtain a square (131769 = 3632).

It can be divided in two parts, 1731 and 40, that added together give a palindrome (1771).

The spelling of 173140 in words is "one hundred seventy-three thousand, one hundred forty", and thus it is an iban number.

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 787 1574 3148 3935 7870 8657 15740 17314 34628 43285 86570 173140