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85930311 = 3173165569
BaseRepresentation
bin1010001111100…
…11000101000111
312222200201020010
411013303011013
5133444232221
612305441303
72062252455
oct507630507
9188621203
1085930311
1144561795
1224940233
1314a5874c
14b5ab9d5
157825c76
hex51f3147

85930311 has 8 divisors (see below), whose sum is σ = 115236720. Its totient is φ = 56955392.

The previous prime is 85930283. The next prime is 85930319. The reversal of 85930311 is 11303958.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85930311 - 27 = 85930183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85930319) 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, 82266 + ... + 83303.

It is an arithmetic number, because the mean of its divisors is an integer number (14404590).

Almost surely, 285930311 is an apocalyptic number.

85930311 is a deficient number, since it is larger than the sum of its proper divisors (29306409).

85930311 is a wasteful number, since it uses less digits than its factorization.

85930311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165745.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 85930311 is about 9269.8603549352. The cubic root of 85930311 is about 441.2812362760.

The spelling of 85930311 in words is "eighty-five million, nine hundred thirty thousand, three hundred eleven".

Divisors: 1 3 173 519 165569 496707 28643437 85930311