Search a number
-
+
3820660 = 225191033
BaseRepresentation
bin1110100100110001110100
321012002221221
432210301310
51434230120
6213520124
744321644
oct16446164
97162857
103820660
11217a578
121343044
13a3a05c
14716524
155070aa
hex3a4c74

3820660 has 12 divisors (see below), whose sum is σ = 8023428. Its totient is φ = 1528256.

The previous prime is 3820651. The next prime is 3820673. The reversal of 3820660 is 660283.

3820660 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2999824 + 820836 = 1732^2 + 906^2 .

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 3 ways as a sum of consecutive naturals, for example, 95497 + ... + 95536.

It is an arithmetic number, because the mean of its divisors is an integer number (668619).

Almost surely, 23820660 is an apocalyptic number.

It is an amenable number.

3820660 is an abundant number, since it is smaller than the sum of its proper divisors (4202768).

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

3820660 is a wasteful number, since it uses less digits than its factorization.

3820660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191042 (or 191040 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 3820660 is about 1954.6508639652. The cubic root of 3820660 is about 156.3313688190.

The spelling of 3820660 in words is "three million, eight hundred twenty thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 191033 382066 764132 955165 1910330 3820660