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85350531 = 374064311
BaseRepresentation
bin1010001011001…
…01100010000011
312221121020220210
411011211202003
5133322204111
612245205203
72054316240
oct505454203
9187536823
1085350531
11441a6132
1224700803
13148b4896
14b49a5c7
15775e0a6
hex5165883

85350531 has 8 divisors (see below), whose sum is σ = 130057984. Its totient is φ = 48771720.

The previous prime is 85350497. The next prime is 85350553. The reversal of 85350531 is 13505358.

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

It is not a de Polignac number, because 85350531 - 26 = 85350467 is a prime.

It is a super-2 number, since 2×853505312 = 14569426283963922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85350581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2032135 + ... + 2032176.

It is an arithmetic number, because the mean of its divisors is an integer number (16257248).

Almost surely, 285350531 is an apocalyptic number.

85350531 is a deficient number, since it is larger than the sum of its proper divisors (44707453).

85350531 is a wasteful number, since it uses less digits than its factorization.

85350531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4064321.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 85350531 is about 9238.5351111526. The cubic root of 85350531 is about 440.2865402848.

Adding to 85350531 its reverse (13505358), we get a palindrome (98855889).

The spelling of 85350531 in words is "eighty-five million, three hundred fifty thousand, five hundred thirty-one".

Divisors: 1 3 7 21 4064311 12192933 28450177 85350531