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4080978 = 2321120611
BaseRepresentation
bin1111100100010101010010
321200100001100
433210111102
52021042403
6223245230
746454616
oct17442522
97610040
104080978
112338110
121449816
13acb6a5
14783346
155592a3
hex3e4552

4080978 has 24 divisors (see below), whose sum is σ = 9646416. Its totient is φ = 1236600.

The previous prime is 4080943. The next prime is 4080983. The reversal of 4080978 is 8790804.

4080978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10108 + ... + 10503.

It is an arithmetic number, because the mean of its divisors is an integer number (401934).

Almost surely, 24080978 is an apocalyptic number.

4080978 is an abundant number, since it is smaller than the sum of its proper divisors (5565438).

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

4080978 is a wasteful number, since it uses less digits than its factorization.

4080978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20630 (or 20627 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 4080978 is about 2020.1430642407. The cubic root of 4080978 is about 159.8041614348.

It can be divided in two parts, 40 and 80978, that added together give a palindrome (81018).

The spelling of 4080978 in words is "four million, eighty thousand, nine hundred seventy-eight".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 20611 41222 61833 123666 185499 226721 370998 453442 680163 1360326 2040489 4080978