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20414656 = 26318979
BaseRepresentation
bin100110111100…
…0000011000000
31102102011122101
41031320003000
520211232111
62005320144
7335343643
oct115700300
942364571
1020414656
1110583919
126a06054
1342ca0a2
1429d5a5a
151bd3bc1
hex13780c0

20414656 has 14 divisors (see below), whose sum is σ = 40510460. Its totient is φ = 10207296.

The previous prime is 20414633. The next prime is 20414657. The reversal of 20414656 is 65641402.

It is not an unprimeable number, because it can be changed into a prime (20414657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159426 + ... + 159553.

Almost surely, 220414656 is an apocalyptic number.

It is an amenable number.

20414656 is a deficient number, since it is larger than the sum of its proper divisors (20095804).

20414656 is an equidigital number, since it uses as much as digits as its factorization.

20414656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318991 (or 318981 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20414656 is about 4518.2580714253. The cubic root of 20414656 is about 273.3048605413.

The spelling of 20414656 in words is "twenty million, four hundred fourteen thousand, six hundred fifty-six".

Divisors: 1 2 4 8 16 32 64 318979 637958 1275916 2551832 5103664 10207328 20414656