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160801 = 4012
BaseRepresentation
bin100111010000100001
322011120121
4213100201
520121201
63240241
71236544
oct472041
9264517
10160801
11aa8a3
1279081
1358264
144285b
15329a1
hex27421

160801 has 3 divisors (see below), whose sum is σ = 161203. Its totient is φ = 160400.

The previous prime is 160789. The next prime is 160807. The reversal of 160801 is 108061.

Multipling 160801 by its sum of digits (16), we get a square (2572816 = 16042).

Adding to 160801 its reverse (108061), we get a palindrome (268862).

It can be divided in two parts, 160 and 801, that added together give a square (961 = 312).

160801 = T400 + T401.

The square root of 160801 is 401.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 159201 + 1600 = 399^2 + 40^2 .

It is not a de Polignac number, because 160801 - 215 = 128033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160807) 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 2 ways as a sum of consecutive naturals, for example, 201 + ... + 601.

2160801 is an apocalyptic number.

160801 is the 401-st square number.

160801 is the 201-st centered octagonal number.

It is an amenable number.

160801 is a deficient number, since it is larger than the sum of its proper divisors (402).

160801 is an frugal number, since it uses more digits than its factorization.

160801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The cubic root of 160801 is about 54.3787952607.

The spelling of 160801 in words is "one hundred sixty thousand, eight hundred one".

Divisors: 1 401 160801