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20512014 = 233418669
BaseRepresentation
bin100111000111…
…1110100001110
31102121010012020
41032033310032
520222341024
62011351010
7336230535
oct116176416
942533166
1020512014
111063aa86
126a52466
1343324b3
142a1d31c
151c02979
hex138fd0e

20512014 has 8 divisors (see below), whose sum is σ = 41024040. Its totient is φ = 6837336.

The previous prime is 20511977. The next prime is 20512031. The reversal of 20512014 is 41021502.

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

20512014 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20511984 and 20512002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1709329 + ... + 1709340.

It is an arithmetic number, because the mean of its divisors is an integer number (5128005).

Almost surely, 220512014 is an apocalyptic number.

20512014 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20512014 is a wasteful number, since it uses less digits than its factorization.

20512014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3418674.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 20512014 is about 4529.0190990986. The cubic root of 20512014 is about 273.7386375885.

Adding to 20512014 its reverse (41021502), we get a palindrome (61533516).

The spelling of 20512014 in words is "twenty million, five hundred twelve thousand, fourteen".

Divisors: 1 2 3 6 3418669 6837338 10256007 20512014