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4068720 = 243255651
BaseRepresentation
bin1111100001010101110000
321122201020100
433201111300
52020144340
6223112400
746404105
oct17412560
97581210
104068720
112329987
121442700
13ac5c36
1477caac
15555830
hex3e1570

4068720 has 60 divisors (see below), whose sum is σ = 13666536. Its totient is φ = 1084800.

The previous prime is 4068707. The next prime is 4068731. The reversal of 4068720 is 278604.

4068720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 2106 + ... + 3545.

Almost surely, 24068720 is an apocalyptic number.

4068720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4068720 is an abundant number, since it is smaller than the sum of its proper divisors (9597816).

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

4068720 is a wasteful number, since it uses less digits than its factorization.

4068720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5670 (or 5661 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4068720 is about 2017.1068390147. The cubic root of 4068720 is about 159.6440001548.

The spelling of 4068720 in words is "four million, sixty-eight thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 5651 11302 16953 22604 28255 33906 45208 50859 56510 67812 84765 90416 101718 113020 135624 169530 203436 226040 254295 271248 339060 406872 452080 508590 678120 813744 1017180 1356240 2034360 4068720