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85590043 = 7111111559
BaseRepresentation
bin1010001101000…
…00000000011011
312222001102110121
411012200000123
5133402340133
612254254111
72056334440
oct506400033
9188042417
1085590043
114434a080
12247b7337
13149698c6
14b51d9c7
1577aa02d
hex51a001b

85590043 has 8 divisors (see below), whose sum is σ = 106709760. Its totient is φ = 66693480.

The previous prime is 85590023. The next prime is 85590047. The reversal of 85590043 is 34009558.

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

It is a de Polignac number, because none of the positive numbers 2k-85590043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85589990 and 85590008.

It is not an unprimeable number, because it can be changed into a prime (85590047) 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, 555703 + ... + 555856.

It is an arithmetic number, because the mean of its divisors is an integer number (13338720).

Almost surely, 285590043 is an apocalyptic number.

85590043 is a deficient number, since it is larger than the sum of its proper divisors (21119717).

85590043 is a wasteful number, since it uses less digits than its factorization.

85590043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111577.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 85590043 is about 9251.4886910162. The cubic root of 85590043 is about 440.6980019749.

The spelling of 85590043 in words is "eighty-five million, five hundred ninety thousand, forty-three".

Divisors: 1 7 11 77 1111559 7780913 12227149 85590043