Search a number
-
+
160800989 = 1012336833
BaseRepresentation
bin10011001010110…
…10000011011101
3102012120112111012
421211122003131
5312131112424
623542305005
73661533356
oct1145320335
9365515435
10160800989
118284a188
1245a28165
132741121b
14174dad2d
15e1b4b0e
hex995a0dd

160800989 has 8 divisors (see below), whose sum is σ = 163113912. Its totient is φ = 158502400.

The previous prime is 160800979. The next prime is 160801007. The reversal of 160800989 is 989008061.

160800989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15405625 + 145395364 = 3925^2 + 12058^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 160800989 - 24 = 160800973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160800929) 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, 20117 + ... + 26949.

It is an arithmetic number, because the mean of its divisors is an integer number (20389239).

Almost surely, 2160800989 is an apocalyptic number.

It is an amenable number.

160800989 is a deficient number, since it is larger than the sum of its proper divisors (2312923).

160800989 is a wasteful number, since it uses less digits than its factorization.

160800989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7167.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 160800989 is about 12680.7329835463. The cubic root of 160800989 is about 543.7879402073.

The spelling of 160800989 in words is "one hundred sixty million, eight hundred thousand, nine hundred eighty-nine".

Divisors: 1 101 233 6833 23533 690133 1592089 160800989