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20414005 = 517092389
BaseRepresentation
bin100110111011…
…1111000110101
31102102010202021
41031313320311
520211222010
62005313141
7335342023
oct115677065
942363667
1020414005
1110583387
126a057b1
1342c99c1
1429d5713
151bd38da
hex1377e35

20414005 has 8 divisors (see below), whose sum is σ = 24521400. Its totient is φ = 16314816.

The previous prime is 20414003. The next prime is 20414011. The reversal of 20414005 is 50041402.

It can be written as a sum of positive squares in 4 ways, for example, as 1681 + 20412324 = 41^2 + 4518^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20414005 - 21 = 20414003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20414005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20414003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7351 + ... + 9739.

It is an arithmetic number, because the mean of its divisors is an integer number (3065175).

Almost surely, 220414005 is an apocalyptic number.

It is an amenable number.

20414005 is a deficient number, since it is larger than the sum of its proper divisors (4107395).

20414005 is a wasteful number, since it uses less digits than its factorization.

20414005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20414005 is about 4518.1860298133. The cubic root of 20414005 is about 273.3019553841.

Adding to 20414005 its reverse (50041402), we get a palindrome (70455407).

The spelling of 20414005 in words is "twenty million, four hundred fourteen thousand, five".

Divisors: 1 5 1709 2389 8545 11945 4082801 20414005