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85070093 = 457186149
BaseRepresentation
bin1010001001000…
…01000100001101
312221002000020012
411010201010031
5133234220333
612235203005
72052040523
oct504410415
9187060205
1085070093
1144024469
12245a6465
1314817044
14b426313
157705e48
hex512110d

85070093 has 4 divisors (see below), whose sum is σ = 85256700. Its totient is φ = 84883488.

The previous prime is 85070081. The next prime is 85070131. The reversal of 85070093 is 39007058.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67947049 + 17123044 = 8243^2 + 4138^2 .

It is a cyclic number.

It is not a de Polignac number, because 85070093 - 28 = 85069837 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 (85070003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92618 + ... + 93531.

It is an arithmetic number, because the mean of its divisors is an integer number (21314175).

Almost surely, 285070093 is an apocalyptic number.

It is an amenable number.

85070093 is a deficient number, since it is larger than the sum of its proper divisors (186607).

85070093 is a wasteful number, since it uses less digits than its factorization.

85070093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186606.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 85070093 is about 9223.3450005950. The cubic root of 85070093 is about 439.8037916504.

The spelling of 85070093 in words is "eighty-five million, seventy thousand, ninety-three".

Divisors: 1 457 186149 85070093