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20414015 = 511336131
BaseRepresentation
bin100110111011…
…1111000111111
31102102010202122
41031313320333
520211222030
62005313155
7335342036
oct115677077
942363678
1020414015
1110583396
126a057bb
1342c99cb
1429d571d
151bd38e5
hex1377e3f

20414015 has 8 divisors (see below), whose sum is σ = 24714288. Its totient is φ = 16186240.

The previous prime is 20414011. The next prime is 20414021. The reversal of 20414015 is 51041402.

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

It is not a de Polignac number, because 20414015 - 22 = 20414011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20413984 and 20414002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20414011) 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, 17501 + ... + 18630.

It is an arithmetic number, because the mean of its divisors is an integer number (3089286).

Almost surely, 220414015 is an apocalyptic number.

20414015 is a deficient number, since it is larger than the sum of its proper divisors (4300273).

20414015 is a wasteful number, since it uses less digits than its factorization.

20414015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36249.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 20414015 is about 4518.1871364520. The cubic root of 20414015 is about 273.3020000106.

Adding to 20414015 its reverse (51041402), we get a palindrome (71455417).

The spelling of 20414015 in words is "twenty million, four hundred fourteen thousand, fifteen".

Divisors: 1 5 113 565 36131 180655 4082803 20414015