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3291380 = 225164569
BaseRepresentation
bin1100100011100011110100
320012012220222
430203203310
51320311010
6154313512
736655601
oct14434364
96165828
103291380
111948954
121128898
138b3181
146196a8
15450355
hex3238f4

3291380 has 12 divisors (see below), whose sum is σ = 6911940. Its totient is φ = 1316544.

The previous prime is 3291373. The next prime is 3291383. The reversal of 3291380 is 831923.

3291380 is digitally balanced in base 2, because in such base 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 1136356 + 2155024 = 1066^2 + 1468^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3291383) 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, 82265 + ... + 82304.

It is an arithmetic number, because the mean of its divisors is an integer number (575995).

Almost surely, 23291380 is an apocalyptic number.

It is an amenable number.

3291380 is an abundant number, since it is smaller than the sum of its proper divisors (3620560).

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

3291380 is a wasteful number, since it uses less digits than its factorization.

3291380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164578 (or 164576 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 3291380 is about 1814.2160841532. The cubic root of 3291380 is about 148.7508109082.

The spelling of 3291380 in words is "three million, two hundred ninety-one thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 164569 329138 658276 822845 1645690 3291380