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85152005 = 517030401
BaseRepresentation
bin1010001001101…
…01000100000101
312221020011120222
411010311010011
5133244331010
612241034125
72052531401
oct504650405
9187204528
1085152005
114407aa64
1224625945
1314845403
14b448101
157720355
hex5135105

85152005 has 4 divisors (see below), whose sum is σ = 102182412. Its totient is φ = 68121600.

The previous prime is 85151987. The next prime is 85152017. The reversal of 85152005 is 50025158.

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 34656769 + 50495236 = 5887^2 + 7106^2 .

It is not a de Polignac number, because 85152005 - 214 = 85135621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8515196 + ... + 8515205.

It is an arithmetic number, because the mean of its divisors is an integer number (25545603).

Almost surely, 285152005 is an apocalyptic number.

It is an amenable number.

85152005 is a deficient number, since it is larger than the sum of its proper divisors (17030407).

85152005 is a wasteful number, since it uses less digits than its factorization.

85152005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17030406.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 85152005 is about 9227.7844036367. The cubic root of 85152005 is about 439.9449052917.

The spelling of 85152005 in words is "eighty-five million, one hundred fifty-two thousand, five".

Divisors: 1 5 17030401 85152005