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7085197 = 71012171
BaseRepresentation
bin11011000001110010001101
3111022222001201
4123001302031
53303211242
6411505501
7114136360
oct33016215
914288051
107085197
113aaa239
122458291
131610c32
14d260d7
1594e4b7
hex6c1c8d

7085197 has 4 divisors (see below), whose sum is σ = 8097376. Its totient is φ = 6073020.

The previous prime is 7085149. The next prime is 7085231. The reversal of 7085197 is 7915807.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7915807 = 31724971.

It is a cyclic number.

It is not a de Polignac number, because 7085197 - 27 = 7085069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7085137) 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 3 ways as a sum of consecutive naturals, for example, 506079 + ... + 506092.

It is an arithmetic number, because the mean of its divisors is an integer number (2024344).

Almost surely, 27085197 is an apocalyptic number.

It is an amenable number.

7085197 is a deficient number, since it is larger than the sum of its proper divisors (1012179).

7085197 is a wasteful number, since it uses less digits than its factorization.

7085197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012178.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 7085197 is about 2661.8033360863. The cubic root of 7085197 is about 192.0660670352.

The spelling of 7085197 in words is "seven million, eighty-five thousand, one hundred ninety-seven".

Divisors: 1 7 1012171 7085197