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4395081 = 31465027
BaseRepresentation
bin10000110001000001001001
322021021220210
4100301001021
52111120311
6234111333
752233435
oct20610111
98237823
104395081
1125320a9
12157b549
13bab652
148259c5
155bc3a6
hex431049

4395081 has 4 divisors (see below), whose sum is σ = 5860112. Its totient is φ = 2930052.

The previous prime is 4395067. The next prime is 4395103. The reversal of 4395081 is 1805934.

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 not a de Polignac number, because 4395081 - 25 = 4395049 is a prime.

It is a super-2 number, since 2×43950812 = 38633473993122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4395031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732511 + ... + 732516.

It is an arithmetic number, because the mean of its divisors is an integer number (1465028).

Almost surely, 24395081 is an apocalyptic number.

It is an amenable number.

4395081 is a deficient number, since it is larger than the sum of its proper divisors (1465031).

4395081 is a wasteful number, since it uses less digits than its factorization.

4395081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465030.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 4395081 is about 2096.4448478317. Note that the first 3 decimals coincide. The cubic root of 4395081 is about 163.8031670877.

The spelling of 4395081 in words is "four million, three hundred ninety-five thousand, eighty-one".

Divisors: 1 3 1465027 4395081