Search a number
-
+
770197 = 4311787
BaseRepresentation
bin10111100000010010101
31110010111211
42330002111
5144121242
624301421
76355321
oct2740225
91403454
10770197
1148672a
12311871
1320c74c
14160981
15103317
hexbc095

770197 has 4 divisors (see below), whose sum is σ = 772416. Its totient is φ = 767980.

The previous prime is 770191. The next prime is 770207. The reversal of 770197 is 791077.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 791077 = 7113011.

It is a cyclic number.

It is not a de Polignac number, because 770197 - 27 = 770069 is a prime.

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 (770191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463 + ... + 1324.

It is an arithmetic number, because the mean of its divisors is an integer number (193104).

2770197 is an apocalyptic number.

It is an amenable number.

770197 is a deficient number, since it is larger than the sum of its proper divisors (2219).

770197 is a wasteful number, since it uses less digits than its factorization.

770197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218.

The product of its (nonzero) digits is 3087, while the sum is 31.

The square root of 770197 is about 877.6086827282. The cubic root of 770197 is about 91.6643804756.

The spelling of 770197 in words is "seven hundred seventy thousand, one hundred ninety-seven".

Divisors: 1 431 1787 770197