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206442607 = 744096689
BaseRepresentation
bin11000100111000…
…01000001101111
3112101110101000111
430103201001233
5410322130412
632252440451
75054506330
oct1423410157
9471411014
10206442607
11a6593428
1259179127
1333a018b7
141d5bc287
15131cd2a7
hexc4e106f

206442607 has 8 divisors (see below), whose sum is σ = 236023200. Its totient is φ = 176884224.

The previous prime is 206442589. The next prime is 206442631. The reversal of 206442607 is 706244602.

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

It is a cyclic number.

It is not a de Polignac number, because 206442607 - 227 = 72224879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206442637) 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, 27519 + ... + 34207.

It is an arithmetic number, because the mean of its divisors is an integer number (29502900).

Almost surely, 2206442607 is an apocalyptic number.

206442607 is a deficient number, since it is larger than the sum of its proper divisors (29580593).

206442607 is an equidigital number, since it uses as much as digits as its factorization.

206442607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11105.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 206442607 is about 14368.1107665552. The cubic root of 206442607 is about 591.0167348577.

The spelling of 206442607 in words is "two hundred six million, four hundred forty-two thousand, six hundred seven".

Divisors: 1 7 4409 6689 30863 46823 29491801 206442607