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67890063 = 361936559
BaseRepresentation
bin1000000101111…
…10101110001111
311201202011122210
410002332232033
5114334440223
610423041503
71453025133
oct402765617
9151664583
1067890063
113535a89a
121a8a0293
13110b0347
1490333c3
155e60893
hex40beb8f

67890063 has 8 divisors (see below), whose sum is σ = 90668800. Its totient is φ = 45185688.

The previous prime is 67890049. The next prime is 67890071. The reversal of 67890063 is 36009876.

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

It is not a de Polignac number, because 67890063 - 24 = 67890047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67890463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16423 + ... + 20136.

It is an arithmetic number, because the mean of its divisors is an integer number (11333600).

Almost surely, 267890063 is an apocalyptic number.

67890063 is a deficient number, since it is larger than the sum of its proper divisors (22778737).

67890063 is a wasteful number, since it uses less digits than its factorization.

67890063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37181.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 67890063 is about 8239.5426450744. The cubic root of 67890063 is about 407.9454283509.

The spelling of 67890063 in words is "sixty-seven million, eight hundred ninety thousand, sixty-three".

Divisors: 1 3 619 1857 36559 109677 22630021 67890063