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20960673 = 36986891
BaseRepresentation
bin100111111110…
…1010110100001
31110102220122020
41033331112201
520331220143
62025132053
7343106556
oct117752641
943386566
1020960673
1110917078
12702a029
13445b786
142ad8a2d
151c90883
hex13fd5a1

20960673 has 4 divisors (see below), whose sum is σ = 27947568. Its totient is φ = 13973780.

The previous prime is 20960669. The next prime is 20960689. The reversal of 20960673 is 37606902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20960673 - 22 = 20960669 is a prime.

It is a super-2 number, since 2×209606732 = 878699625225858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20960623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3493443 + ... + 3493448.

It is an arithmetic number, because the mean of its divisors is an integer number (6986892).

Almost surely, 220960673 is an apocalyptic number.

It is an amenable number.

20960673 is a deficient number, since it is larger than the sum of its proper divisors (6986895).

20960673 is an equidigital number, since it uses as much as digits as its factorization.

20960673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6986894.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 20960673 is about 4578.2827566676. The cubic root of 20960673 is about 275.7200874610.

The spelling of 20960673 in words is "twenty million, nine hundred sixty thousand, six hundred seventy-three".

Divisors: 1 3 6986891 20960673