Search a number
-
+
3780812 = 227135029
BaseRepresentation
bin1110011011000011001100
321010002022002
432123003030
51431441222
6213011432
744064530
oct16330314
97102262
103780812
112152642
121323b78
13a24b89
14705bc0
154ea392
hex39b0cc

3780812 has 12 divisors (see below), whose sum is σ = 7561680. Its totient is φ = 1620336.

The previous prime is 3780811. The next prime is 3780823. The reversal of 3780812 is 2180873.

3780812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

3780812 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3780811) by changing a digit.

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, 67487 + ... + 67542.

It is an arithmetic number, because the mean of its divisors is an integer number (630140).

Almost surely, 23780812 is an apocalyptic number.

It is an amenable number.

3780812 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3780812 is a wasteful number, since it uses less digits than its factorization.

3780812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135040 (or 135038 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 3780812 is about 1944.4310221759. The cubic root of 3780812 is about 155.7859765035.

The spelling of 3780812 in words is "three million, seven hundred eighty thousand, eight hundred twelve".

Divisors: 1 2 4 7 14 28 135029 270058 540116 945203 1890406 3780812