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206946363 = 3135306317
BaseRepresentation
bin11000101010111…
…00000000111011
3112102101222001010
430111130000323
5410434240423
632311325003
75062005111
oct1425340073
9472358033
10206946363
11a68a7958
1259380763
1333b49c90
141d6adab1
151327c693
hexc55c03b

206946363 has 8 divisors (see below), whose sum is σ = 297153808. Its totient is φ = 127351584.

The previous prime is 206946361. The next prime is 206946367. The reversal of 206946363 is 363649602.

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

It is not a de Polignac number, because 206946363 - 21 = 206946361 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 5306317 = 206946363 / (2 + 0 + 6 + 9 + 4 + 6 + 3 + 6 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206946361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2653120 + ... + 2653197.

It is an arithmetic number, because the mean of its divisors is an integer number (37144226).

Almost surely, 2206946363 is an apocalyptic number.

206946363 is a deficient number, since it is larger than the sum of its proper divisors (90207445).

206946363 is a wasteful number, since it uses less digits than its factorization.

206946363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5306333.

The product of its (nonzero) digits is 139968, while the sum is 39.

The square root of 206946363 is about 14385.6304345691. The cubic root of 206946363 is about 591.4970723693.

The spelling of 206946363 in words is "two hundred six million, nine hundred forty-six thousand, three hundred sixty-three".

Divisors: 1 3 13 39 5306317 15918951 68982121 206946363