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206881468 = 2264180687
BaseRepresentation
bin11000101010011…
…00001010111100
3112102021200000121
430111030022330
5410430201333
632310104324
75061314653
oct1425141274
9472250017
10206881468
11a6863122
125934b0a4
1333b26591
141d69419a
151326832d
hexc54c2bc

206881468 has 12 divisors (see below), whose sum is σ = 362611872. Its totient is φ = 103278080.

The previous prime is 206881463. The next prime is 206881511. The reversal of 206881468 is 864188602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206881463) 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 3 ways as a sum of consecutive naturals, for example, 37780 + ... + 42907.

It is an arithmetic number, because the mean of its divisors is an integer number (30217656).

Almost surely, 2206881468 is an apocalyptic number.

It is an amenable number.

206881468 is a deficient number, since it is larger than the sum of its proper divisors (155730404).

206881468 is a wasteful number, since it uses less digits than its factorization.

206881468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81332 (or 81330 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The square root of 206881468 is about 14383.3747083221. The cubic root of 206881468 is about 591.4352379645.

The spelling of 206881468 in words is "two hundred six million, eight hundred eighty-one thousand, four hundred sixty-eight".

Divisors: 1 2 4 641 1282 2564 80687 161374 322748 51720367 103440734 206881468