Search a number
-
+
6809416 = 23851177
BaseRepresentation
bin11001111110011101001000
3110210221202121
4121332131020
53220400131
6401541024
7111610345
oct31763510
913727677
106809416
113931019
122344774
131545553
14c937cc
158e7911
hex67e748

6809416 has 8 divisors (see below), whose sum is σ = 12767670. Its totient is φ = 3404704.

The previous prime is 6809393. The next prime is 6809423. The reversal of 6809416 is 6149086.

It can be written as a sum of positive squares in only one way, i.e., 6502500 + 306916 = 2550^2 + 554^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×68094162 = 92736292522112, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 425581 + ... + 425596.

Almost surely, 26809416 is an apocalyptic number.

It is an amenable number.

6809416 is a deficient number, since it is larger than the sum of its proper divisors (5958254).

6809416 is a wasteful number, since it uses less digits than its factorization.

6809416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851183 (or 851179 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 6809416 is about 2609.4857730978. The cubic root of 6809416 is about 189.5410529660.

It can be divided in two parts, 6809 and 416, that added together give a square (7225 = 852).

The spelling of 6809416 in words is "six million, eight hundred nine thousand, four hundred sixteen".

Divisors: 1 2 4 8 851177 1702354 3404708 6809416