Search a number
-
+
160488289 = 1312345253
BaseRepresentation
bin10011001000011…
…01101101100001
3102011222122112201
421210031231201
5312041111124
623531453201
73656061613
oct1144155541
9364878481
10160488289
1182656255
12458b7201
1327331ab0
1417458db3
15e152144
hex990db61

160488289 has 4 divisors (see below), whose sum is σ = 172833556. Its totient is φ = 148143024.

The previous prime is 160488287. The next prime is 160488311. The reversal of 160488289 is 982884061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 982884061 = 5471796863.

It can be written as a sum of positive squares in 2 ways, for example, as 34869025 + 125619264 = 5905^2 + 11208^2 .

It is a cyclic number.

It is not a de Polignac number, because 160488289 - 21 = 160488287 is a prime.

It is a super-2 number, since 2×1604882892 = 51512981812295042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160488281) 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 3 ways as a sum of consecutive naturals, for example, 6172614 + ... + 6172639.

It is an arithmetic number, because the mean of its divisors is an integer number (43208389).

Almost surely, 2160488289 is an apocalyptic number.

It is an amenable number.

160488289 is a deficient number, since it is larger than the sum of its proper divisors (12345267).

160488289 is a wasteful number, since it uses less digits than its factorization.

160488289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12345266.

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 160488289 is about 12668.3972545859. The cubic root of 160488289 is about 543.4352209174.

The spelling of 160488289 in words is "one hundred sixty million, four hundred eighty-eight thousand, two hundred eighty-nine".

Divisors: 1 13 12345253 160488289