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85496789 = 719642833
BaseRepresentation
bin1010001100010…
…01001111010101
312221212200112202
411012021033111
5133341344124
612252254245
72055465530
oct506111725
9187780482
1085496789
1144296004
1224771385
1314936321
14b4d7a17
15778c5ae
hex51893d5

85496789 has 8 divisors (see below), whose sum is σ = 102853440. Its totient is φ = 69425856.

The previous prime is 85496759. The next prime is 85496813. The reversal of 85496789 is 98769458.

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 85496789 - 28 = 85496533 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85496759) 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, 321284 + ... + 321549.

It is an arithmetic number, because the mean of its divisors is an integer number (12856680).

Almost surely, 285496789 is an apocalyptic number.

It is an amenable number.

85496789 is a deficient number, since it is larger than the sum of its proper divisors (17356651).

85496789 is a wasteful number, since it uses less digits than its factorization.

85496789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642859.

The product of its digits is 4354560, while the sum is 56.

The square root of 85496789 is about 9246.4473718288. The cubic root of 85496789 is about 440.5378907257.

The spelling of 85496789 in words is "eighty-five million, four hundred ninety-six thousand, seven hundred eighty-nine".

Divisors: 1 7 19 133 642833 4499831 12213827 85496789