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20980014 = 23112411319
BaseRepresentation
bin101000000001…
…0000100101110
31110110220011120
41100002010232
520332330024
62025401410
7343220136
oct120020456
943426146
1020980014
111092a660
127039266
134467513
142b01ac6
151c96479
hex140212e

20980014 has 32 divisors (see below), whose sum is σ = 45999360. Its totient is φ = 6326400.

The previous prime is 20979983. The next prime is 20980027. The reversal of 20980014 is 41008902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15247 + ... + 16565.

It is an arithmetic number, because the mean of its divisors is an integer number (1437480).

Almost surely, 220980014 is an apocalyptic number.

20980014 is an abundant number, since it is smaller than the sum of its proper divisors (25019346).

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

20980014 is a wasteful number, since it uses less digits than its factorization.

20980014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 20980014 is about 4580.3945244924. The cubic root of 20980014 is about 275.8048662725.

Adding to 20980014 its reverse (41008902), we get a palindrome (61988916).

The spelling of 20980014 in words is "twenty million, nine hundred eighty thousand, fourteen".

Divisors: 1 2 3 6 11 22 33 66 241 482 723 1319 1446 2638 2651 3957 5302 7914 7953 14509 15906 29018 43527 87054 317879 635758 953637 1907274 3496669 6993338 10490007 20980014