Search a number
-
+
772069 = 4716427
BaseRepresentation
bin10111100011111100101
31110020002011
42330133211
5144201234
624314221
76363634
oct2743745
91406064
10772069
11488081
12312971
1321055c
1416151b
15103b64
hexbc7e5

772069 has 4 divisors (see below), whose sum is σ = 788544. Its totient is φ = 755596.

The previous prime is 772061. The next prime is 772073. The reversal of 772069 is 960277.

It is a happy number.

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: 960277 = 2933113.

It is a cyclic number.

It is not a de Polignac number, because 772069 - 23 = 772061 is a prime.

It is a super-2 number, since 2×7720692 = 1192181081522, 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 self number, because there is not a number n which added to its sum of digits gives 772069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772061) 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, 8167 + ... + 8260.

It is an arithmetic number, because the mean of its divisors is an integer number (197136).

2772069 is an apocalyptic number.

It is an amenable number.

772069 is a deficient number, since it is larger than the sum of its proper divisors (16475).

772069 is a wasteful number, since it uses less digits than its factorization.

772069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16474.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 772069 is about 878.6745700201. The cubic root of 772069 is about 91.7385852500.

The spelling of 772069 in words is "seven hundred seventy-two thousand, sixty-nine".

Divisors: 1 47 16427 772069