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85148227 = 312746717
BaseRepresentation
bin1010001001101…
…00001001000011
312221012222102001
411010310021003
5133244220402
612241004431
72052514363
oct504641103
9187188361
1085148227
114407813a
1224623717
1314843788
14b4469a3
15771e187
hex5134243

85148227 has 4 divisors (see below), whose sum is σ = 87894976. Its totient is φ = 82401480.

The previous prime is 85148221. The next prime is 85148233. The reversal of 85148227 is 72284158.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72284158 = 236142079.

It is an interprime number because it is at equal distance from previous prime (85148221) and next prime (85148233).

It is a cyclic number.

It is not a de Polignac number, because 85148227 - 219 = 84623939 is a prime.

It is a super-2 number, since 2×851482272 = 14500441122487058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85148221) 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, 1373328 + ... + 1373389.

It is an arithmetic number, because the mean of its divisors is an integer number (21973744).

Almost surely, 285148227 is an apocalyptic number.

85148227 is a deficient number, since it is larger than the sum of its proper divisors (2746749).

85148227 is a wasteful number, since it uses less digits than its factorization.

85148227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746748.

The product of its digits is 35840, while the sum is 37.

The square root of 85148227 is about 9227.5796935058. The cubic root of 85148227 is about 439.9383987452.

The spelling of 85148227 in words is "eighty-five million, one hundred forty-eight thousand, two hundred twenty-seven".

Divisors: 1 31 2746717 85148227