Search a number
-
+
7140808 = 2319109431
BaseRepresentation
bin11011001111010111001000
3111102210100101
4123033113020
53312001213
6413015144
7114460453
oct33172710
914383311
107140808
114037aa4
1224844b4
13163033c
14d3c49a
15960bdd
hex6cf5c8

7140808 has 32 divisors (see below), whose sum is σ = 14256000. Its totient is φ = 3343680.

The previous prime is 7140803. The next prime is 7140817. The reversal of 7140808 is 8080417.

It is a super-2 number, since 2×71408082 = 101982277785728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7140803) 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 7 ways as a sum of consecutive naturals, for example, 16353 + ... + 16783.

It is an arithmetic number, because the mean of its divisors is an integer number (445500).

Almost surely, 27140808 is an apocalyptic number.

It is an amenable number.

7140808 is a deficient number, since it is larger than the sum of its proper divisors (7115192).

7140808 is a wasteful number, since it uses less digits than its factorization.

7140808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 561 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 7140808 is about 2672.2290321004. The cubic root of 7140808 is about 192.5672604676.

The spelling of 7140808 in words is "seven million, one hundred forty thousand, eight hundred eight".

Divisors: 1 2 4 8 19 38 76 109 152 218 431 436 862 872 1724 2071 3448 4142 8189 8284 16378 16568 32756 46979 65512 93958 187916 375832 892601 1785202 3570404 7140808