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3820986 = 233135443
BaseRepresentation
bin1110100100110110111010
321012010102000
432210312322
51434232421
6213521430
744322621
oct16446672
97163360
103820986
11217a844
121343276
13a3a250
147166b8
15507226
hex3a4dba

3820986 has 32 divisors (see below), whose sum is σ = 9145920. Its totient is φ = 1175472.

The previous prime is 3820963. The next prime is 3820987. The reversal of 3820986 is 6890283.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3820986.

It is not an unprimeable number, because it can be changed into a prime (3820987) 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 15 ways as a sum of consecutive naturals, for example, 2020 + ... + 3423.

It is an arithmetic number, because the mean of its divisors is an integer number (285810).

Almost surely, 23820986 is an apocalyptic number.

3820986 is an abundant number, since it is smaller than the sum of its proper divisors (5324934).

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

3820986 is a wasteful number, since it uses less digits than its factorization.

3820986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5467 (or 5461 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 3820986 is about 1954.7342530380. The cubic root of 3820986 is about 156.3358150470.

The spelling of 3820986 in words is "three million, eight hundred twenty thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 117 234 351 702 5443 10886 16329 32658 48987 70759 97974 141518 146961 212277 293922 424554 636831 1273662 1910493 3820986