Search a number
-
+
6940912 = 2411113349
BaseRepresentation
bin11010011110100011110000
3111001122010211
4122132203300
53234102122
6404433504
7112665616
oct32364360
914048124
106940912
113a108a0
1223a8894
131590364
14cc96b6
15921877
hex69e8f0

6940912 has 40 divisors (see below), whose sum is σ = 14842800. Its totient is φ = 3118080.

The previous prime is 6940907. The next prime is 6940919. The reversal of 6940912 is 2190496.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6940919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19714 + ... + 20062.

It is an arithmetic number, because the mean of its divisors is an integer number (371070).

Almost surely, 26940912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6940912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7421400).

6940912 is an abundant number, since it is smaller than the sum of its proper divisors (7901888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6940912 is a wasteful number, since it uses less digits than its factorization.

6940912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 6940912 is about 2634.5610640105. The cubic root of 6940912 is about 190.7533524899.

The spelling of 6940912 in words is "six million, nine hundred forty thousand, nine hundred twelve".

Divisors: 1 2 4 8 11 16 22 44 88 113 176 226 349 452 698 904 1243 1396 1808 2486 2792 3839 4972 5584 7678 9944 15356 19888 30712 39437 61424 78874 157748 315496 433807 630992 867614 1735228 3470456 6940912