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20960844 = 2231746737
BaseRepresentation
bin100111111110…
…1011001001100
31110102220212120
41033331121030
520331221334
62025132540
7343110222
oct117753114
943386776
1020960844
1110917213
12702a150
13445b888
142ad8b12
151c90949
hex13fd64c

20960844 has 12 divisors (see below), whose sum is σ = 48908664. Its totient is φ = 6986944.

The previous prime is 20960831. The next prime is 20960851. The reversal of 20960844 is 44806902.

It is a tau number, because it is divible by the number of its divisors (12).

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, 873357 + ... + 873380.

It is an arithmetic number, because the mean of its divisors is an integer number (4075722).

Almost surely, 220960844 is an apocalyptic number.

It is an amenable number.

20960844 is an abundant number, since it is smaller than the sum of its proper divisors (27947820).

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

20960844 is a wasteful number, since it uses less digits than its factorization.

20960844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746744 (or 1746742 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 20960844 is about 4578.3014317539. The cubic root of 20960844 is about 275.7208372462.

The spelling of 20960844 in words is "twenty million, nine hundred sixty thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 12 1746737 3493474 5240211 6986948 10480422 20960844