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85393161 = 3271355447
BaseRepresentation
bin1010001011011…
…11111100001001
312221200102101200
411011233330021
5133330040121
612250134413
72054554440
oct505577411
9187612350
1085393161
1144225167
1224721409
13148cb0c9
14b4abd57
15776ba26
hex516ff09

85393161 has 12 divisors (see below), whose sum is σ = 140966592. Its totient is φ = 48796056.

The previous prime is 85393153. The next prime is 85393199. The reversal of 85393161 is 16139358.

It is a happy number.

It is not a de Polignac number, because 85393161 - 23 = 85393153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85393111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 677661 + ... + 677786.

It is an arithmetic number, because the mean of its divisors is an integer number (11747216).

Almost surely, 285393161 is an apocalyptic number.

It is an amenable number.

85393161 is a deficient number, since it is larger than the sum of its proper divisors (55573431).

85393161 is a wasteful number, since it uses less digits than its factorization.

85393161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355460 (or 1355457 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 85393161 is about 9240.8420070900. The cubic root of 85393161 is about 440.3598313390.

The spelling of 85393161 in words is "eighty-five million, three hundred ninety-three thousand, one hundred sixty-one".

Divisors: 1 3 7 9 21 63 1355447 4066341 9488129 12199023 28464387 85393161