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7416820 = 225536997
BaseRepresentation
bin11100010010101111110100
3111221210222001
4130102233310
53344314240
6422545044
7120020245
oct34225764
914853861
107416820
114206404
122598184
1316c8b68
14db0ccc
159b789a
hex712bf4

7416820 has 24 divisors (see below), whose sum is σ = 15871464. Its totient is φ = 2910336.

The previous prime is 7416809. The next prime is 7416823. The reversal of 7416820 is 286147.

It can be written as a sum of positive squares in 4 ways, for example, as 842724 + 6574096 = 918^2 + 2564^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7416823) 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, 2439 + ... + 4558.

It is an arithmetic number, because the mean of its divisors is an integer number (661311).

Almost surely, 27416820 is an apocalyptic number.

It is an amenable number.

7416820 is an abundant number, since it is smaller than the sum of its proper divisors (8454644).

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

7416820 is a wasteful number, since it uses less digits than its factorization.

7416820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7059 (or 7057 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 7416820 is about 2723.3839244587. The cubic root of 7416820 is about 195.0170486957.

The spelling of 7416820 in words is "seven million, four hundred sixteen thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 6997 13994 27988 34985 69970 139940 370841 741682 1483364 1854205 3708410 7416820