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3860681 = 11350971
BaseRepresentation
bin1110101110100011001001
321021010212012
432232203021
51442020211
6214425305
744546426
oct16564311
97233765
103860681
1121a7650
121362235
13a52336
14726d4d
15513d8b
hex3ae8c9

3860681 has 4 divisors (see below), whose sum is σ = 4211664. Its totient is φ = 3509700.

The previous prime is 3860663. The next prime is 3860687. The reversal of 3860681 is 1860683.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-3860681 is a prime.

It is a super-2 number, since 2×38606812 = 29809715567522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3860687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175475 + ... + 175496.

It is an arithmetic number, because the mean of its divisors is an integer number (1052916).

Almost surely, 23860681 is an apocalyptic number.

It is an amenable number.

3860681 is a deficient number, since it is larger than the sum of its proper divisors (350983).

3860681 is a wasteful number, since it uses less digits than its factorization.

3860681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350982.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 3860681 is about 1964.8615727323. The cubic root of 3860681 is about 156.8753253116.

It can be divided in two parts, 38 and 60681, that multiplied together give a triangular number (2305878 = T2147).

The spelling of 3860681 in words is "three million, eight hundred sixty thousand, six hundred eighty-one".

Divisors: 1 11 350971 3860681