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7065997 = 7989443
BaseRepresentation
bin11010111101000110001101
3111021222201121
4122331012031
53302102442
6411240541
7114026401
oct32750615
914258647
107065997
113a96874
122449151
131605283
14d1d101
15948967
hex6bd18d

7065997 has 4 divisors (see below), whose sum is σ = 7155520. Its totient is φ = 6976476.

The previous prime is 7065983. The next prime is 7066019. The reversal of 7065997 is 7995607.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7065997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7065497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44643 + ... + 44800.

It is an arithmetic number, because the mean of its divisors is an integer number (1788880).

Almost surely, 27065997 is an apocalyptic number.

It is an amenable number.

7065997 is a deficient number, since it is larger than the sum of its proper divisors (89523).

7065997 is an equidigital number, since it uses as much as digits as its factorization.

7065997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89522.

The product of its (nonzero) digits is 119070, while the sum is 43.

The square root of 7065997 is about 2658.1943119343. The cubic root of 7065997 is about 191.8924183913.

It can be divided in two parts, 70659 and 97, that added together give a square (70756 = 2662).

The spelling of 7065997 in words is "seven million, sixty-five thousand, nine hundred ninety-seven".

Divisors: 1 79 89443 7065997