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3852981 = 331112973
BaseRepresentation
bin1110101100101010110101
321020202022000
432230222311
51441243411
6214325513
744515116
oct16545265
97222260
103852981
1121a1890
121359899
13a4b992
1472420d
15511956
hex3acab5

3852981 has 16 divisors (see below), whose sum is σ = 6227520. Its totient is φ = 2334960.

The previous prime is 3852973. The next prime is 3852997. The reversal of 3852981 is 1892583.

It is not a de Polignac number, because 3852981 - 23 = 3852973 is a prime.

It is a super-2 number, since 2×38529812 = 29690925172722, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3852581) 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, 6190 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (389220).

Almost surely, 23852981 is an apocalyptic number.

It is an amenable number.

3852981 is a deficient number, since it is larger than the sum of its proper divisors (2374539).

3852981 is a wasteful number, since it uses less digits than its factorization.

3852981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12993 (or 12987 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 3852981 is about 1962.9011691881. The cubic root of 3852981 is about 156.7709616893.

The spelling of 3852981 in words is "three million, eight hundred fifty-two thousand, nine hundred eighty-one".

Divisors: 1 3 9 11 27 33 99 297 12973 38919 116757 142703 350271 428109 1284327 3852981