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206740152 = 23322871391
BaseRepresentation
bin11000101001010…
…01101010111000
3112102000111011200
430110221222320
5410411141102
632303054200
75060155653
oct1424515270
9472014150
10206740152
11a6776a33
12592a1360
1333aa7168
141d65889a
151323b51c
hexc529ab8

206740152 has 24 divisors (see below), whose sum is σ = 559921440. Its totient is φ = 68913360.

The previous prime is 206740151. The next prime is 206740153. The reversal of 206740152 is 251047602.

206740152 is a `hidden beast` number, since 206 + 7 + 401 + 52 = 666.

It is an interprime number because it is at equal distance from previous prime (206740151) and next prime (206740153).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206740151) 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 5 ways as a sum of consecutive naturals, for example, 1435624 + ... + 1435767.

It is an arithmetic number, because the mean of its divisors is an integer number (23330060).

Almost surely, 2206740152 is an apocalyptic number.

It is an amenable number.

206740152 is an abundant number, since it is smaller than the sum of its proper divisors (353181288).

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

206740152 is a wasteful number, since it uses less digits than its factorization.

206740152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871403 (or 2871396 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 206740152 is about 14378.4613919571. The cubic root of 206740152 is about 591.3005419951.

Adding to 206740152 its reverse (251047602), we get a palindrome (457787754).

The spelling of 206740152 in words is "two hundred six million, seven hundred forty thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 2871391 5742782 8614173 11485564 17228346 22971128 25842519 34456692 51685038 68913384 103370076 206740152