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20414425 = 523312467
BaseRepresentation
bin100110111011…
…1111111011001
31102102011022211
41031313333121
520211230200
62005315121
7335343163
oct115677731
942364284
1020414425
1110583729
126a05aa1
1342c9c55
1429d5933
151bd3aba
hex1377fd9

20414425 has 12 divisors (see below), whose sum is σ = 25400656. Its totient is φ = 16275600.

The previous prime is 20414411. The next prime is 20414437. The reversal of 20414425 is 52441402.

It is a happy number.

It is not a de Polignac number, because 20414425 - 25 = 20414393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20414396 and 20414405.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7042 + ... + 9508.

Almost surely, 220414425 is an apocalyptic number.

20414425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20414425 is a deficient number, since it is larger than the sum of its proper divisors (4986231).

20414425 is a wasteful number, since it uses less digits than its factorization.

20414425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808 (or 2803 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 20414425 is about 4518.2325084041. The cubic root of 20414425 is about 273.3038296861.

Adding to 20414425 its reverse (52441402), we get a palindrome (72855827).

The spelling of 20414425 in words is "twenty million, four hundred fourteen thousand, four hundred twenty-five".

Divisors: 1 5 25 331 1655 2467 8275 12335 61675 816577 4082885 20414425