Search a number
-
+
166539 = 3431291
BaseRepresentation
bin101000101010001011
322110110010
4220222023
520312124
63323003
71262352
oct505213
9273403
10166539
1110413a
1280463
135aa59
1444999
1534529
hex28a8b

166539 has 8 divisors (see below), whose sum is σ = 227392. Its totient is φ = 108360.

The previous prime is 166487. The next prime is 166541. The reversal of 166539 is 935661.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 166539 - 29 = 166027 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (166739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517 + ... + 774.

It is an arithmetic number, because the mean of its divisors is an integer number (28424).

2166539 is an apocalyptic number.

166539 is a deficient number, since it is larger than the sum of its proper divisors (60853).

166539 is a wasteful number, since it uses less digits than its factorization.

166539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337.

The product of its digits is 4860, while the sum is 30.

The square root of 166539 is about 408.0919014144. The cubic root of 166539 is about 55.0180656907.

It can be divided in two parts, 16 and 6539, that added together give a triangular number (6555 = T114).

The spelling of 166539 in words is "one hundred sixty-six thousand, five hundred thirty-nine".

Divisors: 1 3 43 129 1291 3873 55513 166539