Search a number
-
+
8169297189 = 312772132419
BaseRepresentation
bin1111001101110110…
…11001010100100101
3210002022222021222120
413212323121110211
5113212320002224
63430344220153
7406304610654
oct74673312445
923068867876
108169297189
11351239a989
1216bba6a659
13a0263a581
14576d7719b
1532c2dc779
hex1e6ed9525

8169297189 has 8 divisors (see below), whose sum is σ = 10900931040. Its totient is φ = 5441930736.

The previous prime is 8169297179. The next prime is 8169297217. The reversal of 8169297189 is 9817929618.

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

It is not a de Polignac number, because 8169297189 - 213 = 8169288997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8169297179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1062379 + ... + 1070040.

It is an arithmetic number, because the mean of its divisors is an integer number (1362616380).

Almost surely, 28169297189 is an apocalyptic number.

It is an amenable number.

8169297189 is a deficient number, since it is larger than the sum of its proper divisors (2731633851).

8169297189 is a wasteful number, since it uses less digits than its factorization.

8169297189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2133699.

The product of its digits is 3919104, while the sum is 60.

The square root of 8169297189 is about 90384.1644813957. The cubic root of 8169297189 is about 2014.0097336213.

The spelling of 8169297189 in words is "eight billion, one hundred sixty-nine million, two hundred ninety-seven thousand, one hundred eighty-nine".

Divisors: 1 3 1277 3831 2132419 6397257 2723099063 8169297189