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3821285 = 51358789
BaseRepresentation
bin1110100100111011100101
321012010211002
432210323211
51434240120
6213523045
744323526
oct16447345
97163732
103821285
11217aa96
121343485
13a3a420
1471684d
15507375
hex3a4ee5

3821285 has 8 divisors (see below), whose sum is σ = 4938360. Its totient is φ = 2821824.

The previous prime is 3821273. The next prime is 3821317. The reversal of 3821285 is 5821283.

It can be written as a sum of positive squares in 4 ways, for example, as 744769 + 3076516 = 863^2 + 1754^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3821285 - 24 = 3821269 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 29330 + ... + 29459.

It is an arithmetic number, because the mean of its divisors is an integer number (617295).

Almost surely, 23821285 is an apocalyptic number.

It is an amenable number.

3821285 is a deficient number, since it is larger than the sum of its proper divisors (1117075).

3821285 is a wasteful number, since it uses less digits than its factorization.

3821285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58807.

The product of its digits is 3840, while the sum is 29.

The square root of 3821285 is about 1954.8107325263. The cubic root of 3821285 is about 156.3398928068.

The spelling of 3821285 in words is "three million, eight hundred twenty-one thousand, two hundred eighty-five".

Divisors: 1 5 13 65 58789 293945 764257 3821285