Search a number
-
+
8190319 = 50916091
BaseRepresentation
bin11111001111100101101111
3120102010000011
4133033211233
54044042234
6451314051
7126421324
oct37174557
916363004
108190319
114694565
1228ab927
131909c57
141132b4b
15abbb64
hex7cf96f

8190319 has 4 divisors (see below), whose sum is σ = 8206920. Its totient is φ = 8173720.

The previous prime is 8190257. The next prime is 8190331. The reversal of 8190319 is 9130918.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8190319 is a prime.

It is a super-2 number, since 2×81903192 = 134162650643522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8190359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7537 + ... + 8554.

It is an arithmetic number, because the mean of its divisors is an integer number (2051730).

Almost surely, 28190319 is an apocalyptic number.

8190319 is a deficient number, since it is larger than the sum of its proper divisors (16601).

8190319 is a wasteful number, since it uses less digits than its factorization.

8190319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16600.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 8190319 is about 2861.8733375186. The cubic root of 8190319 is about 201.5735784508.

The spelling of 8190319 in words is "eight million, one hundred ninety thousand, three hundred nineteen".

Divisors: 1 509 16091 8190319