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7275413 = 25728309
BaseRepresentation
bin11011110000001110010101
3111200121222202
4123300032111
53330303123
6415534245
7115561055
oct33601625
914617882
107275413
11411a142
12252a385
1316796a2
14d75565
1598aa28
hex6f0395

7275413 has 4 divisors (see below), whose sum is σ = 7303980. Its totient is φ = 7246848.

The previous prime is 7275403. The next prime is 7275427. The reversal of 7275413 is 3145727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3145727 = 13241979.

It can be written as a sum of positive squares in 2 ways, for example, as 5654884 + 1620529 = 2378^2 + 1273^2 .

It is a cyclic number.

It is not a de Polignac number, because 7275413 - 24 = 7275397 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 (7275403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13898 + ... + 14411.

It is an arithmetic number, because the mean of its divisors is an integer number (1825995).

Almost surely, 27275413 is an apocalyptic number.

It is an amenable number.

7275413 is a deficient number, since it is larger than the sum of its proper divisors (28567).

7275413 is a wasteful number, since it uses less digits than its factorization.

7275413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28566.

The product of its digits is 5880, while the sum is 29.

The square root of 7275413 is about 2697.2973510535. The cubic root of 7275413 is about 193.7697076034.

The spelling of 7275413 in words is "seven million, two hundred seventy-five thousand, four hundred thirteen".

Divisors: 1 257 28309 7275413