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20960199 = 3213237789
BaseRepresentation
bin100111111110…
…1001111000111
31110102212222200
41033331033013
520331211244
62025125543
7343105311
oct117751707
943385880
1020960199
1110916787
1270298b3
13445b4b0
142ad87b1
151c90669
hex13fd3c7

20960199 has 24 divisors (see below), whose sum is σ = 34026720. Its totient is φ = 12336192.

The previous prime is 20960197. The next prime is 20960263. The reversal of 20960199 is 99106902.

It is not a de Polignac number, because 20960199 - 21 = 20960197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20960197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1204 + ... + 6585.

It is an arithmetic number, because the mean of its divisors is an integer number (1417780).

Almost surely, 220960199 is an apocalyptic number.

20960199 is a deficient number, since it is larger than the sum of its proper divisors (13066521).

20960199 is a wasteful number, since it uses less digits than its factorization.

20960199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7831 (or 7828 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 20960199 is about 4578.2309902407. The cubic root of 20960199 is about 275.7180090877.

The spelling of 20960199 in words is "twenty million, nine hundred sixty thousand, one hundred ninety-nine".

Divisors: 1 3 9 13 23 39 69 117 207 299 897 2691 7789 23367 70101 101257 179147 303771 537441 911313 1612323 2328911 6986733 20960199