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7252257 = 32417419
BaseRepresentation
bin11011101010100100100001
3111122110020010
4123222210201
53324033012
6415235133
7115433415
oct33524441
914573203
107252257
114103801
122518aa9
13166bc9c
14d6ad45
15983c3c
hex6ea921

7252257 has 4 divisors (see below), whose sum is σ = 9669680. Its totient is φ = 4834836.

The previous prime is 7252253. The next prime is 7252303. The reversal of 7252257 is 7522527.

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 not a de Polignac number, because 7252257 - 22 = 7252253 is a prime.

It is a Duffinian number.

7252257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7252253) 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, 1208707 + ... + 1208712.

It is an arithmetic number, because the mean of its divisors is an integer number (2417420).

Almost surely, 27252257 is an apocalyptic number.

It is an amenable number.

7252257 is a deficient number, since it is larger than the sum of its proper divisors (2417423).

7252257 is a wasteful number, since it uses less digits than its factorization.

7252257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417422.

The product of its digits is 9800, while the sum is 30.

The square root of 7252257 is about 2693.0014853319. The cubic root of 7252257 is about 193.5639140133.

The spelling of 7252257 in words is "seven million, two hundred fifty-two thousand, two hundred fifty-seven".

Divisors: 1 3 2417419 7252257