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85500393 = 3112590921
BaseRepresentation
bin1010001100010…
…10000111101001
312221212212111020
411012022013221
5133342003033
612252323053
72055512166
oct506120751
9187785436
1085500393
1144298790
1224773489
1314937b64
14b4d906d
15778d6b3
hex518a1e9

85500393 has 8 divisors (see below), whose sum is σ = 124364256. Its totient is φ = 51818400.

The previous prime is 85500367. The next prime is 85500397. The reversal of 85500393 is 39300558.

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

It is not a de Polignac number, because 85500393 - 29 = 85499881 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2590921 = 85500393 / (8 + 5 + 5 + 0 + 0 + 3 + 9 + 3).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (85500397) 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, 1295428 + ... + 1295493.

It is an arithmetic number, because the mean of its divisors is an integer number (15545532).

Almost surely, 285500393 is an apocalyptic number.

It is an amenable number.

85500393 is a deficient number, since it is larger than the sum of its proper divisors (38863863).

85500393 is a wasteful number, since it uses less digits than its factorization.

85500393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590935.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 85500393 is about 9246.6422554352. The cubic root of 85500393 is about 440.5440807291.

The spelling of 85500393 in words is "eighty-five million, five hundred thousand, three hundred ninety-three".

Divisors: 1 3 11 33 2590921 7772763 28500131 85500393