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4331409 = 31443803
BaseRepresentation
bin10000100001011110010001
322011001120120
4100201132101
52102101114
6232500453
751550005
oct20413621
98131516
104331409
112499285
12154a729
13b88684
1480a705
155a85a9
hex421791

4331409 has 4 divisors (see below), whose sum is σ = 5775216. Its totient is φ = 2887604.

The previous prime is 4331389. The next prime is 4331417. The reversal of 4331409 is 9041334.

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 4331409 - 25 = 4331377 is a prime.

It is a super-2 number, since 2×43314092 = 37522207850562, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4331489) 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, 721899 + ... + 721904.

It is an arithmetic number, because the mean of its divisors is an integer number (1443804).

Almost surely, 24331409 is an apocalyptic number.

It is an amenable number.

4331409 is a deficient number, since it is larger than the sum of its proper divisors (1443807).

4331409 is a wasteful number, since it uses less digits than its factorization.

4331409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1443806.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 4331409 is about 2081.2037382246. The cubic root of 4331409 is about 163.0083049954.

The spelling of 4331409 in words is "four million, three hundred thirty-one thousand, four hundred nine".

Divisors: 1 3 1443803 4331409