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85348031 = 463184337
BaseRepresentation
bin1010001011001…
…00111010111111
312221121010111012
411011210322333
5133322114111
612245145435
72054306036
oct505447277
9187533435
1085348031
11441a426a
12246bb27b
13148b36c2
14b49971d
15775d48b
hex5164ebf

85348031 has 4 divisors (see below), whose sum is σ = 85532832. Its totient is φ = 85163232.

The previous prime is 85348013. The next prime is 85348033. The reversal of 85348031 is 13084358.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85348031 - 210 = 85347007 is a prime.

It is a super-2 number, since 2×853480312 = 14568572791153922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85348033) 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, 91706 + ... + 92631.

It is an arithmetic number, because the mean of its divisors is an integer number (21383208).

Almost surely, 285348031 is an apocalyptic number.

85348031 is a deficient number, since it is larger than the sum of its proper divisors (184801).

85348031 is a wasteful number, since it uses less digits than its factorization.

85348031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184800.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 85348031 is about 9238.3998073259. The cubic root of 85348031 is about 440.2822414360.

It can be divided in two parts, 853 and 48031, that added together give a palindrome (48884).

The spelling of 85348031 in words is "eighty-five million, three hundred forty-eight thousand, thirty-one".

Divisors: 1 463 184337 85348031