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3864481 = 4782223
BaseRepresentation
bin1110101111011110100001
321021100001221
432233132201
51442130411
6214455041
744563465
oct16573641
97240057
103864481
1121aa495
121364481
13a53c9a
147284a5
15515071
hex3af7a1

3864481 has 4 divisors (see below), whose sum is σ = 3946752. Its totient is φ = 3782212.

The previous prime is 3864479. The next prime is 3864499. The reversal of 3864481 is 1844683.

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 not a de Polignac number, because 3864481 - 21 = 3864479 is a prime.

It is a super-2 number, since 2×38644812 = 29868426798722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3864451) 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, 41065 + ... + 41158.

It is an arithmetic number, because the mean of its divisors is an integer number (986688).

Almost surely, 23864481 is an apocalyptic number.

It is an amenable number.

3864481 is a deficient number, since it is larger than the sum of its proper divisors (82271).

3864481 is an equidigital number, since it uses as much as digits as its factorization.

3864481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82270.

The product of its digits is 18432, while the sum is 34.

The square root of 3864481 is about 1965.8283241423. The cubic root of 3864481 is about 156.9267783029.

The spelling of 3864481 in words is "three million, eight hundred sixty-four thousand, four hundred eighty-one".

Divisors: 1 47 82223 3864481