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85517914 = 2193221549
BaseRepresentation
bin1010001100011…
…10011001011010
312221220202112011
411012032121122
5133343033124
612252540134
72055614236
oct506163132
9187822464
1085517914
11442aa969
122478164a
1314942b21
14b5015c6
157793994
hex518e65a

85517914 has 8 divisors (see below), whose sum is σ = 128942100. Its totient is φ = 42537216.

The previous prime is 85517911. The next prime is 85517921. The reversal of 85517914 is 41971558.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 74528689 + 10989225 = 8633^2 + 3315^2 .

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

It is a super-2 number, since 2×855179142 = 14626627229822792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85517911) 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 3 ways as a sum of consecutive naturals, for example, 110389 + ... + 111160.

Almost surely, 285517914 is an apocalyptic number.

85517914 is a deficient number, since it is larger than the sum of its proper divisors (43424186).

85517914 is a wasteful number, since it uses less digits than its factorization.

85517914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221744.

The product of its digits is 50400, while the sum is 40.

The square root of 85517914 is about 9247.5896318987. The cubic root of 85517914 is about 440.5741712171.

It can be divided in two parts, 855 and 17914, that added together give a square (18769 = 1372).

The spelling of 85517914 in words is "eighty-five million, five hundred seventeen thousand, nine hundred fourteen".

Divisors: 1 2 193 386 221549 443098 42758957 85517914