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3906260 = 2251711489
BaseRepresentation
bin1110111001101011010100
321100110101022
432321223110
52000000020
6215420312
745126341
oct16715324
97313338
103906260
112228916
121384698
13a69cc7
147397c8
15522625
hex3b9ad4

3906260 has 24 divisors (see below), whose sum is σ = 8686440. Its totient is φ = 1470464.

The previous prime is 3906247. The next prime is 3906263. The reversal of 3906260 is 626093.

It can be written as a sum of positive squares in 4 ways, for example, as 394384 + 3511876 = 628^2 + 1874^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3906263) 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, 5405 + ... + 6084.

It is an arithmetic number, because the mean of its divisors is an integer number (361935).

Almost surely, 23906260 is an apocalyptic number.

It is an amenable number.

3906260 is an abundant number, since it is smaller than the sum of its proper divisors (4780180).

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

3906260 is a wasteful number, since it uses less digits than its factorization.

3906260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11515 (or 11513 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 3906260 is about 1976.4260674257. The cubic root of 3906260 is about 157.4902656283.

The spelling of 3906260 in words is "three million, nine hundred six thousand, two hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 11489 22978 45956 57445 114890 195313 229780 390626 781252 976565 1953130 3906260