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20413266 = 233402211
BaseRepresentation
bin100110111011…
…1101101010010
31102102002201220
41031313231102
520211211031
62005305510
7335336616
oct115675522
942362656
1020413266
1110582875
126a05296
1342c9573
1429d5346
151bd3596
hex1377b52

20413266 has 8 divisors (see below), whose sum is σ = 40826544. Its totient is φ = 6804420.

The previous prime is 20413247. The next prime is 20413273. The reversal of 20413266 is 66231402.

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

20413266 is an admirable 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, 1701100 + ... + 1701111.

It is an arithmetic number, because the mean of its divisors is an integer number (5103318).

Almost surely, 220413266 is an apocalyptic number.

20413266 is the 2858-th centered pentagonal number.

20413266 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.

20413266 is a wasteful number, since it uses less digits than its factorization.

20413266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3402216.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20413266 is about 4518.1042484653. The cubic root of 20413266 is about 273.2986574426.

Adding to 20413266 its reverse (66231402), we get a palindrome (86644668).

The spelling of 20413266 in words is "twenty million, four hundred thirteen thousand, two hundred sixty-six".

Divisors: 1 2 3 6 3402211 6804422 10206633 20413266