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7144297 = 8980273
BaseRepresentation
bin11011010000001101101001
3111102222010121
4123100031221
53312104142
6413043241
7114503566
oct33201551
914388117
107144297
11403a686
122486521
131631ac4
14d3d86d
15961c67
hex6d0369

7144297 has 4 divisors (see below), whose sum is σ = 7224660. Its totient is φ = 7063936.

The previous prime is 7144289. The next prime is 7144307. The reversal of 7144297 is 7924417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1687401 + 5456896 = 1299^2 + 2336^2 .

It is a cyclic number.

It is not a de Polignac number, because 7144297 - 23 = 7144289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7144217) 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, 40048 + ... + 40225.

It is an arithmetic number, because the mean of its divisors is an integer number (1806165).

Almost surely, 27144297 is an apocalyptic number.

It is an amenable number.

7144297 is a deficient number, since it is larger than the sum of its proper divisors (80363).

7144297 is an equidigital number, since it uses as much as digits as its factorization.

7144297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80362.

The product of its digits is 14112, while the sum is 34.

The square root of 7144297 is about 2672.8817781563. The cubic root of 7144297 is about 192.5986181597.

The spelling of 7144297 in words is "seven million, one hundred forty-four thousand, two hundred ninety-seven".

Divisors: 1 89 80273 7144297