Search a number
-
+
160661 = 347463
BaseRepresentation
bin100111001110010101
322011101102
4213032111
520120121
63235445
71236254
oct471625
9264342
10160661
11aa786
1278b85
1358187
144279b
153290b
hex27395

160661 has 4 divisors (see below), whose sum is σ = 161472. Its totient is φ = 159852.

The previous prime is 160651. The next prime is 160663. The reversal of 160661 is 166061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-160661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 160661.

It is not an unprimeable number, because it can be changed into a prime (160663) 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, 116 + ... + 578.

It is an arithmetic number, because the mean of its divisors is an integer number (40368).

2160661 is an apocalyptic number.

It is an amenable number.

160661 is a deficient number, since it is larger than the sum of its proper divisors (811).

160661 is an equidigital number, since it uses as much as digits as its factorization.

160661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 160661 is about 400.8253983969. The cubic root of 160661 is about 54.3630092025.

The spelling of 160661 in words is "one hundred sixty thousand, six hundred sixty-one".

Divisors: 1 347 463 160661